Updated on 2025/03/30

写真a

 
KUTSUKAKE Kentaro
 
Organization
Institute of Materials and Systems for Sustainability Center for Integrated Research of Future Electronics Innovative Devices Section Associate professor
Graduate School
Graduate School of Engineering
Title
Associate professor
Contact information
メールアドレス

Degree 1

  1. 博士(理学) ( 2007.3   東北大学 ) 

Research Interests 5

  1. Silicon

  2. Solar cells

  3. Machine learning

  4. Crystal growth

  5. Crystal defects

Research Areas 5

  1. Nanotechnology/Materials / Crystal engineering

  2. Nanotechnology/Materials / Applied physical properties

  3. Nanotechnology/Materials / Applied condensed matter physics

  4. Informatics / Intelligent informatics

  5. Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electric and electronic materials

Research History 9

  1. Nagoya University   Institute of Materials and Systems for Sustainability   Associate professor

    2024.4

  2. Tohoku University   Visiting Professor

    2023.4 - 2025.3

  3. RIKEN   Center for Advanced Intelligence Project   Researcher

    2018.11 - 2024.3

  4. Nagoya University   Institutes of Innovation for Future Society   Designated lecturer

    2017.11

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    Country:Japan

  5. Tohoku University   Institute for Materials Research   Assistant Professor

    2010.10 - 2017.10

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    Country:Japan

  6. Kyoto University   Graduate Scool of Energy Science   Designated assistant professor

    2010.4 - 2010.9

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    Country:Japan

  7. Tohoku University   Institute for Materials Research   Assistant Professor

    2007.8 - 2010.3

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    Country:Japan

  8. Tohoku University

    2007.4 - 2007.7

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    Country:Japan

  9. Tohoku University

    2006.4 - 2007.3

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    Country:Japan

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Education 3

  1. Tohoku University   Graduate School, Division of Natural Science

    2004.4 - 2007.3

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    Country: Japan

  2. Tohoku University   Graduate School, Division of Natural Science

    2002.4 - 2004.3

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    Country: Japan

  3. Tohoku University   Faculty of Science

    1998.4 - 2002.3

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    Country: Japan

Professional Memberships 6

  1. 日本機械学会

    2024.10

  2. 日本結晶成長学会

  3. 応用物理学会

  4. JSAP Informatics Professional Group

  5. JSAP Crystals Science and Technology Division

  6. The Japan Photovoltaic Society

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Committee Memberships 9

  1. 応用物理学会 産学連携委員会「半導体の結晶成長と加工および評価に関する産学連携委員会」   幹事  

    2023   

  2. 日本結晶成長学会   機関紙編集委員  

    2022   

  3. 応用物理学会 インフォマティクス応用研究会   代表  

    2019   

  4. 日本学術振興会第145委員会   学界委員  

    2017.4   

  5. 日本学術振興会 第145委員会   学界委員  

    2017 - 2023   

  6. 応用物理学会   機関誌「応用物理」 外部記者  

    2016 - 2017   

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    Committee type:Academic society

    応用物理学会

  7. 応用物理学会   学術講演会プログラム編集委員  

    2013.8 - 2018.3   

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    Committee type:Other

  8. 応用物理学会   機関誌「応用物理」 編集委員  

    2013.4 - 2015.3   

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    Committee type:Other

  9. 応用物理学会 結晶工学分科会   幹事  

    2012   

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    Committee type:Academic society

    応用物理学会 結晶工学分科会

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Awards 1

  1. 最優秀ポスター賞

    2017  

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    Country:Japan

 

Papers 125

  1. Modeling and analysis of undoped GaN grown in a horizontal laminar flow MOCVD reactor Reviewed

    Gotow, T; Sonoda, T; Takahashi, T; Yamada, H; Ide, T; Azumi, R; Shimizu, M; Tsunooka, Y; Seki, S; Kutsukake, K; Ujihara, T

    MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   Vol. 188   2025.3

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    Language:English   Publisher:Materials Science in Semiconductor Processing  

    The modeling of undoped GaN in a horizontal laminar flow channel metal-organic chemical vapor deposition (MOCVD) reactor was investigated using a two-dimensional crystal growth simulator, STR Virtual Reactor. By calibrating the ceiling temperatures of the flow channel from the gas inlet to the outlet, a highly reliable simulation model for replicating a 4-inch MOCVD reactor was developed. The study analyzed the material properties of GaN, grown under two sets of growth pressures and gas flow rates, along the flow direction by evaluating the surface morphology, thickness, X-ray diffraction curves, and the incorporation of carbon residual impurities. We assert that gas flow velocities, CH3/NH2 and CH3/CH4 ratios are critical parameters influencing carbon concentration in GaN. These featured parameters are crucial factors in machine learning models for process informatics of GaN MOCVD.

    DOI: 10.1016/j.mssp.2024.109258

    Web of Science

    Scopus

  2. Machine learning-based laser heterodyne photothermal displacement method: simultaneous estimation of silicon thermal diffusivity and carrier lifetime Reviewed

    Shota Urano, Tomoki Harada, Tetsuo Ikari, Kentaro Kutsukake, Atsuhiko Fukuyama

    Japanese journal of applied physics   Vol. 64 ( 2 )   2025.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.35848/1347-4065/ada9f6

    Web of Science

    Scopus

  3. Stress analysis and dislocation cluster generation in silicon crystal with artificial grain boundaries Reviewed

    Haruki Tajika, Kentaro Kutsukake, Noritaka Usami

    Journal of crystal growth   Vol. 649   2025.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jcrysgro.2024.127922

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  4. Multicrystalline informatics: a methodology to advance materials science by unraveling complex phenomena Open Access

    Noritaka Usami, Kentaro Kutsukake, Takuto Kojima, Hiroaki Kudo, Tatsuya Yokoi, Yutaka Ohno

    Science and technology of advanced materials   Vol. 25 ( 1 ) page: 2396272   2024.12

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    Language:English   Publisher:Informa UK Limited  

    Multicrystalline materials play a crucial role in our society. However, their microstructure is complicated, and there is no universal approach to achieving high performance. Therefore, a methodology is necessary to answer the fundamental question of how we should design and create microstructures. ‘Multicrystalline informatics’ is an innovative approach that combines experimental, theoretical, computational, and data sciences. This approach helps us understand complex phenomena in multicrystalline materials and improve their performance. The paper covers various original research bases of multicrystalline informatics, such as the three-dimensional visualization of crystal defects in multicrystalline materials, the machine learning model for predicting crystal orientation distribution, network analysis of multicrystalline structures, computational methods using artificial neural network interatomic potentials, and so on. The integration of these research bases proves to be useful in understanding unexplained phenomena in complex multicrystalline materials. The paper also presents examples of efficient optimization of the growth process of high-quality materials with the aid of informatics, as well as prospects for extending the methodology to other materials.

    DOI: 10.1080/14686996.2024.2396272

    Open Access

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    PubMed

  5. Feature extraction and spatial imaging of synchrotron radiation X-ray diffraction patterns using unsupervised machine learning Reviewed

    Kentaro Kutsukake, Takefumi Kamioka, Kota Matsui, Ichiro Takeuchi, Takashi Segi, Takuo Sasaki, Seiji Fujikawa, Masamitu Takahasi

    Science and Technology of Advanced Materials: Methods   Vol. 4 ( 1 )   2024.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Informa UK Limited  

    DOI: 10.1080/27660400.2024.2336402

    Web of Science

  6. Thermal boundary conductance of artificially and systematically designed grain boundaries of Silicon measured by laser heterodyne photothermal displacement method Reviewed Open Access

    T. Harada, K. Kutsukake, N. Usami, T. Ikari, A. Fukuyama

    Journal of applied physics   Vol. 136 ( 20 )   2024.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/5.0237047

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    Web of Science

    Scopus

  7. Modeling and analysis of undoped GaN grown in a horizontal laminar flow MOCVD reactor Reviewed

    Takahiro Gotow, Tsutomu Sonoda, Tokio Takahashi, Hisashi Yamada, Toshihide Ide, Reiko Azumi, Mitsuaki Shimizu, Yosuke Tsunooka, Shota Seki, Kentaro Kutsukake, Toru Ujihara

    Materials Science in Semiconductor Processing   Vol. 188   2024.11

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    Language:English  

  8. Analysis of Macrostep Interaction via Carbon Diffusion Field in SiC Solution Growth Reviewed

    Yuki Nakanishi, Kentaro Kutsukake, Yifan Dang, Shunta Harada, Miho Tagawa, Toru Ujihara

    Journal of Crystal Growth   Vol. 631   page: 127609 - 127609   2024.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.jcrysgro.2024.127609

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  9. Exploring mc-Silicon Wafers: Utilizing Machine Learning to Enhance Wafer Quality Through Etching Studies Reviewed International coauthorship

    Raji, M; Suseela, SB; Manikkam, S; Anbazhagan, G; Kutsukake, K; Thamotharan, K; Rajavel, R; Usami, N; Perumalsamy, R

    CRYSTAL RESEARCH AND TECHNOLOGY   Vol. 59 ( 4 )   2024.4

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    Language:English   Publisher:Crystal Research and Technology  

    This paper provides a method for improving the photovoltaic conversion efficiency and optical attributes of silicon solar cells manufactured from as-cut boron doped p-type multi-crystalline silicon wafers using acid-based chemical texturization via machine learning. A decreased reflectance, which can be attained by the right chemical etching conditions, is one of the key elements for raising solar cell efficiency. In this work, the mc-Silicon wafer surface reflectance is obtained under (<2%) after optimization of wet chemical etching. The HF + HNO3 + CH3COOH chemical etchant is used in the ratio 1:3:2 at different conditions of the etching duration of 1 min, 2 min, 3 min, and 4 min, respectively. The as-cut boron doped p-type mc-silicon wafers are analysed with ultraviolet–visible spectroscopy, optical microscopy, Fourier transforms infrared spectroscopy, thickness profilometer, and scanning electron microscopy before and after etching. The chemical etching solution produces good results in 3 min etched wafer, with a reflectivity value of <2%.The reflectivity and optical images are inputs to the convolutional neural network model and the linear regression model to obtain the etching rate for better reflectivity. The classification model provides 99.6% accuracy and the regression model results in the minimum mean squared error (MSE) of 0.062.

    DOI: 10.1002/crat.202300279

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  10. Review of machine learning applications for crystal growth research Reviewed

    Kentaro Kutsukake

    JOURNAL OF CRYSTAL GROWTH   Vol. 630   2024.3

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    Authorship:Lead author, Last author, Corresponding author   Language:English  

    DOI: 10.1016/j.jcrysgro.2024.127598

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  11. High Passivation Performance of Cat-CVD i-a-Si:H Derived from Bayesian Optimization with Practical Constraints Reviewed

    Ryota Ohashi, Kentaro Kutsukake, Huynh Thi Cam Tu, Koichi Higashimine, Keisuke Ohdaira

    ACS Applied Materials &amp; Interfaces   Vol. 16 ( 7 ) page: 9428 - 9435   2024.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsami.3c16202

  12. Effect of Solution Components on Solvent Inclusion in SiC Solution Growth Reviewed

    Huiqin Zhou, Hitoshi Miura, Yuma Fukami, Yifan Dang, Kentaro Kutsukake, Shunta Harada, Miho Tagawa, Toru Ujihara

    Crystal Growth &amp; Design   Vol. 24 ( 4 ) page: 1806 - 1817   2024.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.cgd.3c01476

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  13. Multicrystalline Informatics Applied to Multicrystalline Silicon for Unraveling the Microscopic Root Cause of Dislocation Generation Reviewed Open Access

    Kenta Yamakoshi, Yutaka Ohno, Kentaro Kutsukake, Takuto Kojima, Tatsuya Yokoi, Hideto Yoshida, Hiroyuki Tanaka, Xin Liu, Hiroaki Kudo, Noritaka Usami

    Advanced Materials   Vol. 36 ( 8 ) page: e2308599   2024.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Abstract

    A comprehensive analysis of optical and photoluminescence images obtained from practical multicrystalline silicon wafers is conducted, utilizing various machine learning models for dislocation cluster region extraction, grain segmentation, and crystal orientation prediction. As a result, a realistic 3D model that includes the generation point of dislocation clusters is built. Finite element stress analysis on the 3D model coupled with crystal growth simulation reveals inhomogeneous and complex stress distribution and that dislocation clusters are frequently formed along the slip plane with the highest shear stress among twelve equivalents, concentrated along bending grain boundaries (GBs). Multiscale analysis of the extracted GBs near the generation point of dislocation clusters combined with ab initio calculations has shown that the dislocation generation due to the concentration of shear stress is caused by the nanofacet formation associated with GB bending. This mechanism cannot be captured by the Haasen‐Alexander‐Sumino model. Thus, this research method reveals the existence of a dislocation generation mechanism unique to the multicrystalline structure. Multicrystalline informatics linking experimental, theoretical, computational, and data science on multicrystalline materials at multiple scales is expected to contribute to the advancement of materials science by unraveling complex phenomena in various multicrystalline materials.

    DOI: 10.1002/adma.202308599

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  14. A stopping criterion for level set estimation

    ISHIBASHI Hideaki, MATSUI Kota, KUTSUKAKE Kentaro, HINO Hideitsu

    Proceedings of the Annual Conference of JSAI   Vol. JSAI2024 ( 0 ) page: 2M5OS2401 - 2M5OS2401   2024

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    Language:Japanese   Publisher:The Japanese Society for Artificial Intelligence  

    <p>Level set estimation is one of the adaptive experimental design that determines the next measurement point by using the obtained measurement results so far, and its task is to estimate the regions that do not satisfy the desired level using as few data as possible. Level set estimation considers a black box function with each measurement point as an input and the corresponding measurement result as an output, and predicts whether unmeasurement point exceeds the threshold using a surrogate function estimated from the dataset. The efficiency of level set estimation depends on (1) the acquisition function that determines the next measurement point and (2) the timing at which level set estimation is stopped. This study proposes a stopping criterion for level set estimation based on the probability that the surrogate function exceeds the threshold value. The proposed stopping criterion can guarantee a tail probability that the surrogate function exceeds the threshold for any acquisition function. This paper shows that the proposed stopping criterion can efficiently stop level set estimation for several test functions.</p>

    DOI: 10.11517/pjsai.jsai2024.0_2m5os2401

    CiNii Research

  15. Active Learning for Level Set Estimation Using Randomized Straddle Algorithms

    Inatsu Y., Takeno S., Kutsukake K., Takeuchi I.

    Transactions on Machine Learning Research   Vol. 2024   2024

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    Publisher:Transactions on Machine Learning Research  

    Level set estimation (LSE) the problem of identifying the set of input points where a function takes a value above (or below) a given threshold is important in practical applications. When the function is expensive to evaluate and black-box, the straddle algorithm, a representative heuristic for LSE based on Gaussian process models, and its extensions with theoretical guarantees have been developed. However, many existing methods include a confidence parameter, β1/2 t, that must be specified by the user. Methods that choose β1/2 t heuristically do not provide theoretical guarantees. In contrast, theoretically guaranteed values of β1/2 t need to be increased depending on the number of iterations and candidate points; they are conservative and do not perform well in practice. In this study, we propose a novel method, the randomized straddle algorithm, in which βt in the straddle algorithm is replaced by a random sample from the chi-squared distribution with two degrees of freedom. The confidence parameter in the proposed method does not require adjustment, does not depend on the number of iterations and candidate points, and is not conservative. Furthermore, we show that the proposed method has theoretical guarantees that depend on the sample complexity and the number of iterations. Finally, we validate the applicability of the proposed method through numerical experiments using synthetic and real data.

    Scopus

  16. 3D CNN and grad-CAM based visualization for predicting generation of dislocation clusters in multicrystalline silicon

    Kyoka Hara, Takuto Kojima, Kentaro Kutsukake, Hiroaki Kudo, Noritaka Usami

    APL machine learning     2023.9

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/5.0156044

  17. Machine learning for semiconductor process simulation described by coupled partial differential equations

    Rikuya Sato, Kentaro Kutsukake, Shunta Harada, Miho Tagawa, Toru Ujihara

    Advanced theory and simulations   Vol. 6 ( 9 )   2023.9

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adts.202300218

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  18. AI・インフォマティクス応用について,今思うこと

    沓掛 健太朗

    応用物理   Vol. 92 ( 6 ) page: 369 - 372   2023.6

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    Language:Japanese   Publisher:公益社団法人 応用物理学会  

    DOI: 10.11470/oubutsu.92.6_369

    CiNii Research

  19. A machine learning-based prediction of crystal orientations for multicrystalline materials

    Kyoka Hara, Takuto Kojima, Kentaro Kutsukake, Hiroaki Kudo, Noritaka Usami

    APL machine learning     2023.6

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/5.0138099

  20. Analysis of grain growth behavior of multicrystalline Mg2Si Open Access

    Takumi Deshimaru, Kenta Yamakoshi, Kentaro Kutsukake, Takuto Kojima, Tsubasa Umehara, Haruhiko Udono, Noritaka Usami

    Japanese journal of applied physics   Vol. 62 ( SD )   2023.5

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    DOI: 10.35848/1347-4065/aca032

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  21. Bayesian optimization of hydrogen plasma treatment in silicon quantum dot multilayer and application to solar cells Open Access

    Fuga Kumagai, Kazuhiro Gotoh, Satoru Miyamoto, Shinya Kato, Kentaro Kutsukake, Noritaka Usami, Yasuyoshi Kurokawa

    Discover Nano   Vol. 18 ( 1 ) page: 43   2023.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    Silicon quantum dot multilayer (Si-QDML) is a promising material for a light absorber of all silicon tandem solar cells due to tunable bandgap energy in a wide range depending on the silicon quantum dot (Si-QD) size, which is possible to overcome the Shockley–Queisser limit. Since solar cell performance is degenerated by carrier recombination through dangling bonds (DBs) in Si-QDML, hydrogen termination of DBs is crucial. Hydrogen plasma treatment (HPT) is one of the methods to introduce hydrogen into Si-QDML. However, HPT has a large number of process parameters. In this study, we employed Bayesian optimization (BO) for the efficient survey of HPT process parameters. Photosensitivity (PS) was adopted as the indicator to be maximized in BO. PS (σ<sub>p</sub>/σ<sub>d</sub>) was calculated as the ratio of photoconductivity (σ<sub>p</sub>) and dark conductivity (σ<sub>d</sub>) of Si-QDML, which allowed the evaluation of important electrical characteristics in solar cells easily without fabricating process-intensive devices. 40-period layers for Si-QDML were prepared by plasma-enhanced chemical vapor deposition method and post-annealing onto quartz substrates. Ten samples were prepared by HPT under random conditions as initial data for BO. By repeating calculations and experiments, the PS was successfully improved from 22.7 to 347.2 with a small number of experiments. In addition, Si-QD solar cells were fabricated with optimized HPT process parameters; open-circuit voltage (V<sub>OC</sub>) and fill factor (FF) values of 689 mV and 0.67, respectively, were achieved. These values are the highest for this type of device, which were achieved through an unprecedented attempt to combine HPT and BO. These results prove that BO is effective in accelerating the optimization of practical process parameters in a multidimensional parameter space, even for novel indicators such as PS.

    DOI: 10.1186/s11671-023-03821-9

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    Other Link: https://link.springer.com/article/10.1186/s11671-023-03821-9/fulltext.html

  22. Modeling-Based Design of the Control Pattern for Uniform Macrostep Morphology in Solution Growth of SiC Reviewed

    Yifan Dang, Xinbo Liu, Can Zhu, Yuma Fukami, Shuyang Ma, Huiqin Zhou, Xin Liu, Kentaro Kutsukake, Shunta Harada, Toru Ujihara

    Crystal Growth and Design   Vol. 23 ( 2 ) page: 1023 - 1032   2023.1

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    In the solution growth of the SiC crystal, macrosteps with sufficient height on an off-axis substrate are required to reduce defects and achieve a high-quality grown layer. However, over-developed macrosteps can induce new defects and adversely affect the crystal quality. To better understand and control the behavior of macrosteps corresponding to the control parameters of the growth system, a simulation method that consists of a global two-dimensional computational fluid dynamic (CFD) model, a local three-dimensional CFD model near the growth front, and a kinetics model that describes the movement of macrosteps on the crystal surface is proposed. The simulation method is first applied to investigate the effect of the crystal rotation speed on macrostep morphology. Although the results indicate that a higher crystal rotation speed results in less step bunching, constantly rotating the crystal in one direction is demonstrated to be incapable of yielding a uniform macrostep distribution on the whole surface. Accordingly, a sophisticated control pattern is designed by periodically switching the flow direction underneath the crystal surface, where the proposed simulation method is critical to determine detailed control-parameter values. When the control pattern suggested by the simulation is used, a grown crystal with a uniform macrostep morphology and ideal step height on the whole surface is obtained in the practical experiment.

    DOI: 10.1021/acs.cgd.2c01194

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  23. Bayesian Optimization for Cascade-Type Multistage Processes Open Access

    Shunya Kusakawa, Shion Takeno, Yu Inatsu, Kentaro Kutsukake, Shogo Iwazaki, Takashi Nakano, Toru Ujihara, Masayuki Karasuyama, Ichiro Takeuchi

    Neural Computation   Vol. 34 ( 12 ) page: 2408 - 2431   2022.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:MIT Press  

    Abstract

    Complex processes in science and engineering are often formulated as multistage decision-making problems. In this letter, we consider a cascade process, a type of multistage decision-making process. This is a multistage process in which the output of one stage is used as an input for the subsequent stage. When the cost of each stage is expensive, it is difficult to search for the optimal controllable parameters for each stage exhaustively. To address this problem, we formulate the optimization of the cascade process as an extension of the Bayesian optimization framework and propose two types of acquisition functions based on credible intervals and expected improvement. We investigate the theoretical properties of the proposed acquisition functions and demonstrate their effectiveness through numerical experiments. In addition, we consider suspension setting, an extension in which we are allowed to suspend the cascade process at the middle of the multistage decision-making process that often arises in practical problems. We apply the proposed method in a test problem involving a solar cell simulator, the motivation for this study.

    DOI: 10.1162/neco_a_01550

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  24. Estimation of Crystal Orientation of Grains on Polycrystalline Silicon Substrate by Recurrent Neural Network

    Hikaru Kato, Soichiro Kamibeppu, Takuto Kojima, Tetsuya Matsumoto, Hiroaki Kudo, Yoshinori Takeuchi, Kentaro Kutsukake, Noritaka Usami

    IEEJ Transactions on Electrical and Electronic Engineering   Vol. 17 ( 11 ) page: 1685 - 1687   2022.11

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    Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/tee.23676

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    Other Link: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/tee.23676

  25. Optimization of Flow Distribution by Topological Description and Machine Learning in Solution Growth of SiC Reviewed

    Masaru Isono, Shunta Harada, Kentaro Kutsukake, Tomoo Yokoyama, Miho Tagawa, Toru Ujihara

    Advanced Theory and Simulations   Vol. 5 ( 9 ) page: 2200302   2022.9

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    Publishing type:Research paper (scientific journal)  

    The macroscopic distribution of fluid flows, which affect the quality of final products for various kinds of materials, is often difficult to describe in mathematical formulae and hinders the implementation of empirical knowledge in scaling up. In the present study, the characteristics of the flow distribution in silicon carbide (SiC) solution growth are described by using the position of the saddle point and the solution growth conditions are optimized by computational fluid dynamics simulation, machine learning, and a genetic algorithm. As a result, the candidates of the optimal condition for the solution growth of 6-in. SiC crystals are successfully obtained from the empirical knowledge gained from 3-in. crystal growth, by adding the topological description to the objective function. The present design of the objective function using the topological description can possibly be applied to other crystal growth or materials processing problems and to overcome scale-up difficulties, which can facilitate the rapid development of functional materials such as SiC wafers for power device applications.

    DOI: 10.1002/adts.202200302

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  26. A Transfer Learning-Based Method for Facilitating the Prediction of Unsteady Crystal Growth Reviewed

    Yifan Dang, Kentaro Kutsukake, Xin Liu, Yoshiki Inoue, Xinbo Liu, Shota Seki, Can Zhu, Shunta Harada, Miho Tagawa, Toru Ujihara

    Advanced Theory and Simulations   Vol. 5 ( 9 ) page: 2200204   2022.9

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    Publishing type:Research paper (scientific journal)  

    Real-time prediction and dynamic control systems that can adapt to an unsteady environment are necessary for material fabrication processes, especially crystal growth. Recent studies have demonstrated the effectiveness of machine learning in predicting an unsteady crystal growth process, but its wider application is hindered by the large amount of training data required for sufficient accuracy. To address this problem, this study investigates the capability of transfer learning to predict geometric evolution in an unsteady silicon carbide (SiC) solution growth system based on a small amount of data. The performance of transferred models is discussed regarding the effect of the transfer learning method, training data amount, and time step length. The transfer learning strategy yields the same accuracy as that of training from scratch but requires only 20% of the training data. The accuracy is stably inherited through successive time steps, which demonstrates the effectiveness of transfer learning in reducing the required amount of training data for predicting evolution in an unsteady crystal growth process. Moreover, the transferred models trained with relatively more data (no more than 100%) further improve the accuracy inherited from the source model through multiple time steps, which broadens the application scope of transfer learning.

    DOI: 10.1002/adts.202200204

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  27. Study on electrical activity of grain boundaries in silicon through systematic control of structural parameters and characterization using a pretrained machine learning model

    Yusuke Fukuda, Kentaro Kutsukake, Takuto Kojima, Yutaka Ohno, Noritaka Usami

    Journal of applied physics   Vol. 132 ( 2 ) page: 025102 - 025102   2022.7

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    Publishing type:Research paper (scientific journal)   Publisher:AIP Publishing  

    We report on the effects of grain boundary (GB) structures on the carrier recombination velocity at GB ( v<sub>GB</sub>) in multicrystalline Si (mc-Si). The fabricated artificial GBs and an originally developed machine learning model allowed an investigation of the effect of three macroscopic parameters, misorientation angle α for Σ values, asymmetric angle β, and deviation angle θ from the ingot growth direction. Totally, 13 GBs were formed by directional solidification using multi-seeds with controlled crystal orientations. v<sub>GB</sub> was evaluated directly from photoluminescence intensity profiles across GBs using a pre-trained machine learning model, which allowed a quantitative and continuous evaluation along GBs. The evaluation results indicated that the impact of θ on v<sub>GB</sub> would be relatively large among the three macroscopic parameters. In addition, the results for the Σ5 and Σ13 GBs suggested that the minimum v<sub>GB</sub> would be related to the GB energy. These results were discussed in terms of the complexity of the local reconstruction of GB structures. The deviation would make a more complex reconstructed GB structure with local distortion, resulting in an increase in the electrical activity of GBs. The obtained knowledge will contribute to improving various polycrystalline materials through a comprehensive understanding of the relationship between GB structures and their properties.

    DOI: 10.1063/5.0086193

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  28. Virtual experiments of Czochralski growth of silicon using machine learning: Influence of processing parameters on interstitial oxygen concentration

    Kentaro Kutsukake, Yuta Nagai, Hironori Banba

    Journal of crystal growth   Vol. 584   page: 126580 - 126580   2022.4

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    DOI: 10.1016/j.jcrysgro.2022.126580

  29. Effects of grain boundary structure and shape of the solid–liquid interface on the growth direction of the grain boundaries in multicrystalline silicon

    Yusuke Fukuda, Kentaro Kutsukake, Takuto Kojima, Noritaka Usami

    CrystEngComm   Vol. 24 ( 10 ) page: 1948 - 1954   2022.3

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    Publishing type:Research paper (scientific journal)   Publisher:Royal society of chemistry ({RSC})  

    DOI: 10.1039/d1ce01573g

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  30. Data-driven optimization and experimental validation for the lab-scale mono-like silicon ingot growth by directional solidification Open Access

    Xin Liu, Yifan Dang, Hiroyuki Tanaka, Yusuke Fukuda, Kentaro Kutsukake, Takuto Kojima, Toru Ujihara, Noritaka Usami

    ACS omega   Vol. 7 ( 8 ) page: 6665 - 6673   2022.3

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    DOI: 10.1021/acsomega.1c06018

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    PubMed

  31. Process informatics using simulation data for crystal growth

    Kutsukake Kentaro, Tsunooka Yosuke, Wancheng Yu, Dang Yifan, Harada Shunta, Ujihara Toru

    Journal of the Japanese Association for Crystal Growth   Vol. 49 ( 1 ) page: n/a   2022

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    <p>  In this paper, machine learning and optimization based on simulation data of crystal growth are discussed from the viewpoint of informatics application, introducing our application to solution growth of SiC crystal. First, general aspects of crystal growth process simulation and its informatics applications are described. Next, after an overview of the solution growth of SiC crystal, the process optimization of solution growth of SiC crystal using machine learning is described, including the prediction model of temperature and flow of the solution in the crucible, the optimization of geometry conditions, and the optimization of process conditions corresponding to time evolution. Next, application to other materials is described. Finally, this paper is summarized with future prospects.</p>

    DOI: 10.19009/jjacg.49-1-06

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  32. Generation of photoluminescence image based on image translation by generative adversarial networks from multi-dimensional optical image embedding crystal orientation

    Kudo Hiroaki, Kojima Takuto, Matsumoto Tetsuya, Kutsukake Kentaro, Usami Noritaka

    Proceedings of the Annual Meeting of the Japan Photovoltaic Society   Vol. 1   page: 50 - 50   2021.10

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    DOI: 10.57295/jpvsproc.1.0_50

  33. Stress analysis on multicrystalline Si structure during crystal growth reproduced by various data

    Yamakoshi Kenta, Kutsukake Kentaro, Kojima Takuto, Kudo Hiroaki, Tanaka Hiroyuki, Ohno Yutaka, Usami Noritaka

    Proceedings of the Annual Meeting of the Japan Photovoltaic Society   Vol. 1   page: 52 - 52   2021.10

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    DOI: 10.57295/jpvsproc.1.0_52

  34. A machine learning-based crystal orientation estimation method and its application

    Hara Kyoka, Kojima Takuto, Kutsukake Kentaro, Kudo Hiroaki, Keerthivasan Thamotharan, Srinivasan Manickam, Ramasamy Perumalsamy, Usami Noritaka

    Proceedings of the Annual Meeting of the Japan Photovoltaic Society   Vol. 1   page: 125 - 125   2021.10

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    DOI: 10.57295/jpvsproc.1.0_125

  35. Application of Bayesian optimization for high-performance TiO /SiO /c-Si passivating contact

    Shinsuke Miyagawa, Kazuhiro Gotoh, Kentaro Kutsukake, Yasuyoshi Kurokawa, Noritaka Usami

    Solar energy materials and solar cells   Vol. 230   page: 111251 - 111251   2021.9

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    We report on the application of Bayesian optimization (BO), which could accelerate the time-intensive process optimization of many parameters, to fabrication of the high-performance titanium oxide/silicon oxide/crystalline silicon passivating contact. The process contains pre-deposition treatment to form SiOy interlayer, atomic layer deposition (ALD) of TiOx, and hydrogen plasma treatment (HPT) as post-process. We attempted to optimize seven parameters for ALD and HPT by dealing with samples treated by three kinds of chemical solutions in the same batch. This permits to perform BO for each structure at the same time and determine the superior pre-deposition treatment. Consequently, carrier selectivity S10 estimated by independent measurements of the saturation current density and contact resistance was significantly improved by BO of only 12 cycles and 10 initial random experiments. These results certify that BO could efficiently provide experimental conditions in multidimensional parameter space although we need to consider the impact of the metallization process on the passivation performance.

    DOI: 10.1016/j.solmat.2021.111251

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  36. Direct prediction of electrical properties of grain boundaries from photoluminescence profiles using machine learning

    Kentaro Kutsukake, Kazuki Mitamura, Noritaka Usami, Takuto Kojima

    Applied physics letters   Vol. 119 ( 3 ) page: 032105 - 032105   2021.7

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    DOI: 10.1063/5.0049847

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  37. Occurrence prediction of dislocation regions in photoluminescence image of multicrystalline silicon wafers using transfer learning of convolutional neural network Open Access

    Kudo, H., Matsumoto, T., Kutsukake, K., Usami, N.

    IEICE transactions on fundamentals of electronics, communications and computer sciences   Vol. E104A ( 6 ) page: 857 - 865   2021.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electronics, Information and Communications Engineers (IEICE)  

    <p>In this paper, we evaluate a prediction method of regions including dislocation clusters which are crystallographic defects in a photoluminescence (PL) image of multicrystalline silicon wafers. We applied a method of a transfer learning of the convolutional neural network to solve this task. For an input of a sub-region image of a whole PL image, the network outputs the dislocation cluster regions are included in the upper wafer image or not. A network learned using image in lower wafers of the bottom of dislocation clusters as positive examples. We experimented under three conditions as negative examples; image of some depth wafer, randomly selected images, and both images. We examined performances of accuracies and Youden's J statistics under 2 cases; predictions of occurrences of dislocation clusters at 10 upper wafer or 20 upper wafer. Results present that values of accuracies and values of Youden's J are not so high, but they are higher results than ones of bag of features (visual words) method. For our purpose to find occurrences dislocation clusters in upper wafers from the input wafer, we obtained results that randomly select condition as negative examples is appropriate for 10 upper wafers prediction, since its results are better than other negative examples conditions, consistently.</p>

    DOI: 10.1587/transfun.2020IMP0010

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  38. Geometrical design of a crystal growth system guided by a machine learning algorithm

    Yu, W., Zhu, C., Tsunooka, Y., Huang, W., Dang, Y., Kutsukake, K., Harada, S., Tagawa, M., Ujihara, T.

    CrystEngComm   Vol. 23 ( 14 ) page: 2695 - 2702   2021.4

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    DOI: 10.1039/d1ce00106j

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  39. Adaptive process control for crystal growth using machine learning for high-speed prediction: application to SiC solution growth

    Dang, Y., Zhu, C., Ikumi, M., Takaishi, M., Yu, W., Huang, W., Liu, X., Kutsukake, K., Harada, S., Tagawa, M., Ujihara, T.

    CrystEngComm   Vol. 23 ( 9 ) page: 1982 - 1990   2021.3

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    DOI: 10.1039/d0ce01824d

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  40. Identification of Dislocation Clusters based on Image Translation of Photoluminescence Image of Multicrystalline Silicon Wafer

    Kudo Hiroaki, Matsumoto Tetsuya, Kutsukake Kentaro, Usami Noritaka

    JSAP Annual Meetings Extended Abstracts   Vol. 2021.1   page: 3049 - 3049   2021.2

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    Language:Japanese   Publisher:The Japan Society of Applied Physics  

    DOI: 10.11470/jsapmeeting.2021.1.0_3049

  41. Crystal orientation estimation model based on light reflection profile for multicrystalline silicon

    Kojima Takuto, Hara Kyoka, Kutsukake Kentaro, Matsumoto Tetsuya, Kudo Hiroaki, Usami Noritaka

    JSAP Annual Meetings Extended Abstracts   Vol. 2021.1   page: 3048 - 3048   2021.2

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    DOI: 10.11470/jsapmeeting.2021.1.0_3048

  42. Application of Bayesian optimization for improved passivation performance in TiO x /SiO y /c-Si heterostructure by hydrogen plasma treatment

    Shinsuke Miyagawa, Kazuhiro Gotoh, Kentaro Kutsukake, Yasuyoshi Kurokawa, Noritaka Usami

    Applied physics express   Vol. 14 ( 2 ) page: 025503 - 025503   2021.2

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    We applied hydrogen plasma treatment (HPT) on a titanium oxide/silicon oxide/crystalline silicon heterostructure to improve the passivation performance for high-efficiency silicon heterojunction solar cells. To accelerate the time-intensive process optimization of many parameters, we applied Bayesian optimization (BO). Consequently, the optimization of six process parameters of HPT was achieved by BO of only 15 cycles and 10 initial random experiments. Furthermore, the effective carrier lifetime after HPT on the optimized experimental conditions became three times higher compared with that before HPT, which certifies that BO is useful for accelerating optimization of the practical process conditions in multidimensional parameter space.

    DOI: 10.35848/1882-0786/abd869

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  43. Segregation mechanism of arsenic dopants at grain boundaries in silicon

    Yutaka Ohno, Tatsuya Yokoi, Yasuo Shimizu, Jie Ren, Koji Inoue, Yasuyoshi Nagai, Kentaro Kutsukake, Kozo Fujiwara, Atsutomo Nakamura, Katsuyuki Matsunaga, Hideto Yoshida

    Science and technology of advanced materials: Methods   Vol. 1 ( 1 ) page: 169 - 180   2021.1

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    Publishing type:Research paper (scientific journal)   Publisher:Informa {UK} limited  

    DOI: 10.1080/27660400.2021.1969701

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  44. Origin of recombination activity of non-coherent σ3{111} grain boundaries with a positive deviation in the tilt angle in cast-grown silicon ingots

    Ohno, Y; Tamaoka, T; Yoshida, H; Shimizu, Y; Kutsukake, K; Nagai, Y; Usami, N

    APPLIED PHYSICS EXPRESS   Vol. 14 ( 1 )   2021.1

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  45. Origin of recombination activity of non-coherent Σ3{111} grain boundaries with a positive deviation in the tilt angle in cast-grown silicon ingots Open Access

    Ohno, Y., Tamaoka, T., Yoshida, H., Shimizu, Y., Kutsukake, K., Nagai, Y., Usami, N.

    Applied physics express   Vol. 14 ( 1 ) page: 011002 - 011002   2021.1

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    Publishing type:Research paper (scientific journal)   Publisher:IOP Publishing  

    DOI: 10.35848/1882-0786/abd0a0

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    Scopus

    Other Link: https://iopscience.iop.org/article/10.35848/1882-0786/abd0a0/pdf

  46. Technologies for large-diameter SiC crystal growth and application of process informatics

    Ujihara Toru, Zhu Can, Tsunooka Yosuke, Furusho Tomoaki, Suzuki Koki, Kutsukake Kentaro, Takaishi Masaki, Yu Wancheng, Dang Yifan, Isono Masaru, Takeuchi Ichiro, Tagawa Miho, Harada Shunta

    Journal of the Japanese Association for Crystal Growth   Vol. 48 ( 3 ) page: n/a   2021

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    <p>  We have been developing a SiC crystal growth technique using the solution method. As a result, we have achieved the growth of ultra-high quality crystals with extremely low dislocation density. The key to this is the reduction of dislocation density by utilizing the macro-step dislocation conversion phenomenon and the suppression of surface morphology roughness by controlling the flow in the solution. In order to put these technologies to practical use, we have developed a new machine learning technique for optimizing crystal growth conditions for large-diameter crystals. In this method, a model is constructed in the computer that reproduces the actual experiment quickly and accurately, and then hundreds of thousands or millions of trials are performed using the model to derive the experimental conditions with high efficiency. This means that optimization by surrogate models, which is one of the methods of process informatics, has been realized in crystal growth. By using these techniques, we were able to achieve 6-inch crystal growth in a very short time.</p>

    DOI: 10.19009/jjacg.48-3-04

    CiNii Research

  47. Application of machine learning for high-performance multicrystalline materials

    Noritaka Usami, Kentaro Kutsukake, Takuto Kojima, Hiroaki Kudo, Tetsuya Matsumoto, Tatsuya Yokoi, Yasuo Shimizu, Yutaka Ohno

    ECS Transactions   Vol. 102 ( 4 ) page: 11 - 16   2021

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    We report on our recent attempt to pioneer “multicrystalline informatics” through collaboration of experiments, theory, computation, and machine learning to establish universal guidelines how we can obtain high-performance multicrystalline materials. We employ silicon as a model material, and develop various useful machine learning models. One example is a neural network to predict distribution of crystal orientations in a large-area sample from multiple optical images. Transfer learning of pre-trained image classifier could predict spatial distribution of probability of dislocations generation from photoluminescence images. Extracted regions with high probability of dislocations generation could be characterized by multiscale experiments as well as computation using artificial-neural-network interatomic potential to disclose the physics behind. The obtained knowledge could be useful for process development of high-performance multicrystalline materials.

    DOI: 10.1149/10204.0011ecst

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  48. Application of Bayesian optimization for experimental conditions of film deposition

    KUTSUKAKE Kentaro, OSADA Keiichi, MATSUI Kota, YAMAMOTO Jun

    Oyo Buturi   Vol. 89 ( 12 ) page: 711 - 714   2020.12

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    <p>Bayesian optimization, which is a machine learning method for sequential optimization, is widely applied as an optimization method that balances exploration and exploitation. In this paper, we first explain the outline of Bayesian optimization, and then introduce its application to the optimization of deposition conditions of epitaxial Si film growth. This paper focus on utilizing the expertise and experience of engineers.</p>

    DOI: 10.11470/oubutsu.89.12_711

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  49. Adaptive Bayesian optimization for epitaxial growth of Si thin films under various constraints Open Access

    Osada, K., Kutsukake, K., Yamamoto, J., Yamashita, S., Kodera, T., Nagai, Y., Horikawa, T., Matsui, K., Takeuchi, I., Ujihara, T.

    Materials today communications   Vol. 25   2020.12

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    DOI: 10.1016/j.mtcomm.2020.101538

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  50. Real-time prediction of interstitial oxygen concentration in Czochralski silicon using machine learning

    Kentaro Kutsukake, Yuta Nagai, Tomoyuki Horikawa, Hironori Banba

    Applied physics express   Vol. 13 ( 12 ) page: 125502 - 125502   2020.11

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    Abstract

    We developed a machine learning model to predict interstitial oxygen (Oi) concentration in a Czochralski-grown silicon crystal. A highly accurate prediction can be ensured by selecting the appropriate experimental parameters that represent the change in the furnace conditions. A neural network was trained using the dataset of 450 ingots, and its prediction error for the testing dataset was 4.2 × 10<sup>16</sup> atoms cm<sup>−3</sup>. Finally, a real-time prediction system was developed wherein the crystal growth data are input into the model, and the Oi concentration at the current growth interface is calculated immediately.

    DOI: 10.35848/1882-0786/abc6ec

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    Other Link: https://iopscience.iop.org/article/10.35848/1882-0786/abc6ec/pdf

  51. Generation of dislocation clusters at triple junctions of random angle grain boundaries during cast growth of silicon ingots Open Access

    Ohno, Y., Tajima, K., Kutsukake, K., Usami, N.

    Applied physics express   Vol. 13 ( 10 ) page: 105505 - 105505   2020.10

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    Publishing type:Research paper (scientific journal)   Publisher:IOP Publishing  

    DOI: 10.35848/1882-0786/abbb1c

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    Other Link: https://iopscience.iop.org/article/10.35848/1882-0786/abbb1c/pdf

  52. Determination of carrier recombination velocity at inclined grain boundaries in multicrystalline silicon through photoluminescence imaging and carrier simulation

    Kazuki Mitamura, Kentaro Kutsukake, Takuto Kojima, Noritaka Usami

    Journal of applied physics   Vol. 128 ( 12 ) page: 125103 - 125103   2020.9

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    Publishing type:Research paper (scientific journal)   Publisher:{AIP} publishing  

    DOI: 10.1063/5.0017823

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  53. Towards elucidation and control of grain boundary structures by multicrystalline informatics

    Usami Noritaka, Kutsukake Kentaro, Kojima Takuto, Kudo Hiroaki, Yokoi Tatsuya, Ohno Yutaka

    JSAP Annual Meetings Extended Abstracts   Vol. 2020.2   page: 157 - 157   2020.8

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    DOI: 10.11470/jsapmeeting.2020.2.0_157

  54. Features of Generation Points of Dislocation Clusters in Multicrystalline Silicon Ingot based on Transfer Learning of Convolutional Neural Network

    Kudo Hiroaki, Matsumoto Tetsuya, Kutsukake Kentaro, Usami Noritaka

    JSAP Annual Meetings Extended Abstracts   Vol. 2020.1   page: 3607 - 3607   2020.2

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    DOI: 10.11470/jsapmeeting.2020.1.0_3607

  55. Transmission behavior of dislocations against Σ3 twin boundaries in Si

    Ichiro Yonenaga, Kentaro Kutsukake

    Journal of applied physics   Vol. 127 ( 7 )   2020.2

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    DOI: 10.1063/1.5139972

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  56. Bayesian Active Learning for Inverse Problem of Structured-Output

    MATSUI Kota, KUSAKAWA Shunya, ANDO Keisuke, KUTSUKAKE Kentaro, UJIHARA Toru, TAKEUCHI Ichiro

    Proceedings of the Annual Conference of JSAI   Vol. JSAI2020 ( 0 ) page: 2J1GS201 - 2J1GS201   2020

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    <p>We propose an active learning method for the inverse problem of finding input parameters that achieve the desired structured-output. Here, the structured-output refers to a multidimensional vector in which each element has a correlation. Specifically, we propose three acquisition functions to minimize the squared error between the desired structured-output and the prediction by the model by explicitly incorporating the correlation between output elements for a black-box vector-valued objective function into a Gaussian process model. We apply the proposed method to the search problem of growth rate distribution using actual data of silicon carbide (SiC) crystal growth modeling, and verify its effectiveness.</p>

    DOI: 10.11517/pjsai.jsai2020.0_2j1gs201

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  57. Structural properties of triple junctions acting as dislocation sources in high-performance Si ingots

    Yutaka Ohno, Kazuya Tajima, Kentaro Kutsukake, Noritaka Usami

    Conference Record of the IEEE Photovoltaic Specialists Conference   Vol. 2020-   page: 2340 - 2340   2020

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Institute of Electrical and Electronics Engineers Inc.  

    Dislocation clusters that would degrade the electric property can be generated from a grain boundary (GB) neighboring a triple junction of GBs. The atomic plane of the GB is bent via the movement of the triple junction, supposedly due to S3{111} micro-twins intersecting the GB, and a number of dislocations would be generated nearby the bending corner. Bundles of dislocation arrays expanding nearly parallel to the growth direction and honeycombed dislocation networks lying on a {111} plane nearly normal to the growth direction can coexist, suggesting that multiple slip systems would be operated when the dislocations are tangled.

    DOI: 10.1109/pvsc45281.2020.9300738

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  58. Application of artificial neural network to optimize sensor positions for accurate monitoring: An example with thermocouples in a crystal growth furnace

    Boucetta, A., Kutsukake, K., Kojima, T., Kudo, H., Matsumoto, T., Usami, N.

    Applied physics express   Vol. 12 ( 12 ) page: 125503 - 125503   2019.12

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    Publishing type:Research paper (scientific journal)   Publisher:IOP Publishing  

    DOI: 10.7567/1882-0786/ab52a9

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    Other Link: http://iopscience.iop.org/article/10.7567/1882-0786/ab52a9/pdf

  59. Study of local structure at crystalline rubrene grain boundaries via scanning transmission X-ray microscopy Open Access

    Foggiatto, A.L., Takeichi, Y., Ono, K., Suga, H., Takahashi, Y., Fusella, M.A., Dull, J.T., R, , B.P., Kutsukake, K., Sakurai, T.

    Organic electronics   Vol. 74   page: 315 - 320   2019.11

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    DOI: 10.1016/j.orgel.2019.07.021

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  60. Dependence of substrate work function on the energy-level alignment at organic-organic heterojunction interface

    Foggiatto, A.L., Suga, H., Takeichi, Y., Ono, K., Takahashi, Y., Kutsukake, K., Ueba, T., Kera, S., Sakurai, T.

    Japanese journal of applied physics   Vol. 58 ( SB )   2019.4

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    DOI: 10.7567/1347-4065/aaffbf

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  61. Growth of crystalline silicon for solar cells: Noncontact crucible method

    Kazuo Nakajima

    Handbook of photovoltaic silicon     page: 235 - 266   2019.1

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    The noncontact crucible (NOC) method has the potential to be an advanced cast method. It is effective in obtaining Si single ingots with large diameter and volume using cast furnace, and solar cells manufactured with Si obtained this way have high yield and high conversion efficiency. Several novel characteristics of this method are explained based on the existence of a large low-temperature region in a Si melt, which is key to realize its enclosing potential as follows. The largest diameter ratio of 0.9 was obtained by expanding the low-temperature region in the Si melt. For p-type solar cells, the highest of 19.14% and the average conversion efficiencies of 19.0% were obtained for the NOC wafers, using the same solar cell structure and process to obtain the conversion efficiency of 19.1% for a p-type Czochralski (CZ) wafers. The present method realized solar cells with conversion efficiency and yield as high as those of CZ solar cells using cast furnace for the first time. The latest information about the growth of Si ingots using the NOC method is explained.

    DOI: 10.1007/978-3-662-56472-1_14

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  62. 3D visualization and analysis of dislocation clusters in multicrystalline silicon ingot by approach of data science Reviewed Open Access

    Hayama, Y., Matsumoto, T., Muramatsu, T., Kutsukake, K., Kudo, H., Usami, N.

    Solar energy materials and solar cells   Vol. 189   page: 239 - 244   2019.1

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    DOI: 10.1016/j.solmat.2018.06.008

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  63. The Prediction Model of Crystal Growth Simulation Built by Machine Learning and Its Applications

    UJIHARA Toru, TSUNOOKA Yosuke, HATASA Goki, KUTSUKAKE Kentaro, ISHIGURO Akio, MURAYAMA Kenta, NARUMI Taka, HARADA Shunta, TAGAWA Miho

    Vacuum and Surface Science   Vol. 62 ( 3 ) page: 136 - 140   2019

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Vacuum and Surface Science  

    <p>The prediction model of the result of computed fluid dynamics simulation in SiC solution growth was constructed on neural network using machine learning. Utilizing the prediction model, we can optimize quickly crystal growth conditions. In addition, the real-time visualization system was also made using the prediction model.</p>

    DOI: 10.1380/vss.62.136

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    CiNii Research

  64. Efficient estimation for red-zone in silicon wafers for solar cells using Level Set Estimation

    HOZUMI Shota, MATSUI Kota, KUTSUKAKE Kentaro, UJIHARA Toru, TAKEUCHI Ichiro

    Proceedings of the Annual Conference of JSAI   Vol. JSAI2019 ( 0 ) page: 2P4J201 - 2P4J201   2019

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    <p>For the task of estimating a spacial distribution of a physical quantity, it is common to x the measurement positions to meshgrid points evenly allocated along the coordinates of the space. However, such xed measurement positions often contain redundancy in the sense that not all the measurements in the meshgrid points are required for the target task. Especially when a measurement of the physical quantity is costly, it is thus benecial to allocate the measurement points adaptively and reduce the number of measurements. In this study, we applied Level Set Estimation (LSE), which is a method to efficiently estimate the boundary position, to carrier lifetime mapping of silicon for solar cells, and estimated the low quality region. Our approach can reasonably estimate the boundary position by measuring less than 1% position compare to conventional approach.</p>

    DOI: 10.11517/pjsai.jsai2019.0_2p4j201

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  65. Machine learning for SiC top-seeded solution growth - Prediction, optimization and visualization Reviewed

    Toru Ujihara, Yosuke Tsunooka, Goki Hatasa, Can Zhu, Kentaro Kutsukake, Taka Narumi, Shunta Harada, Miho Tagawa

    CS MANTECH 2019 - 2019 International Conference on Compound Semiconductor Manufacturing Technology, Digest of Papers     2019

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    © 2019 CS Mantech. All rights reserved. We are developing solution growth technique for high-quality SiC bulk crystal. In actual, we have achieved high-quality crystal with very-low-density of threading dislocations grown by controlling the surface morphology. In order to apply this technique to large-scale crystal growth, it is necessary to control supersaturation at growth surface, flow rate and flow direction of solvent in detail. However, there are many growth parameters which should be optimized. Simulation technique based on computational fluid dynamics (CFD) is often used. However, it is still difficult to optimize growth condition by utilizing simulation technique since the calculation speed of CFD simulation is not enough to optimize the growth conditions, exhaustively. In recent, informatics including machine learning is applied to various fields including materials science. In this study, we tried to apply machine learning to the analysis of the results of CFD. We could make the model to optimize the crystal growth parameters based on a neural network model. Using the model, the optimization time became 10000 times faster. This is just a trial of “Process Informatics”.

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  66. Application of weighted Voronoi diagrams to analyze nucleation sites of multicrystalline silicon ingots Reviewed Open Access

    Muramatsu, T., Hayama, Y., Kutsukake, K., Maeda, K., Matsumoto, T., Kudo, H., Fujiwara, K., Usami, N.

    Journal of crystal growth   Vol. 499   page: 62 - 66   2018.10

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    DOI: 10.1016/j.jcrysgro.2018.07.028

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    Scopus

  67. Insight into physical processes controlling the mechanical properties of the wurtzite group-III nitride family Reviewed

    Yonenaga, I., Deura, M., Tokumoto, Y., Kutsukake, K., Ohno, Y.

    Journal of crystal growth   Vol. 500   page: 23 - 28   2018.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jcrysgro.2018.08.001

    Scopus

  68. Distribution of light-element impurities in Si crystals grown by seed-casting method Reviewed

    Nakayama, R., Kojima, T., Ogura, A., Kutsukake, K.

    Japanese journal of applied physics   Vol. 57 ( 8 )   2018.8

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    DOI: 10.7567/JJAP.57.08RB19

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  69. Interaction of sodium atoms with stacking faults in silicon with different Fermi levels Open Access

    Ohno Y., Morito H., Kutsukake K., Yonenaga I., Yokoi T., Nakamura A., Matsunaga K.

    Applied Physics Express   Vol. 11 ( 6 )   2018.6

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    Publisher:Applied Physics Express  

    Variation in the formation energy of stacking faults (SFs) with the contamination of Na atoms was examined in Si crystals with different Fermi levels. Na atoms agglomerated at SFs under an electronic interaction, reducing the SF formation energy. The energy decreased with the decrease of the Fermi level: It was reduced by more than 10mJ/m2 in p-type Si, whereas it was barely reduced in n-type Si. Owing to the energy reduction, Na atoms agglomerating at SFs in p-type Si are stable compared with those in n-type Si, and this hypothesis was supported by ab initio calculations.

    DOI: 10.7567/APEX.11.061303

    Open Access

    Scopus

  70. Interaction of sodium atoms with stacking faults in silicon with different Fermi levels

    Ohno, Y; Morito, H; Kutsukake, K; Yonenaga, I; Yokoi, T; Nakamura, A; Matsunaga, K

    APPLIED PHYSICS EXPRESS   Vol. 11 ( 6 )   2018.6

  71. Optimization of Detection of Dislocation Clusters in the Photoluminescence Image by Image Processing

    Tajima Kazuya, Hayama Yusuke, Muramatsu Tetsuro, Kutsukake Kentaro, matsumoto Tetsuya, Kudo Hiroaki, Usami Noritaka

    JSAP Annual Meetings Extended Abstracts   Vol. 2018.1 ( 0 ) page: 3821 - 3821   2018.3

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    DOI: 10.11470/jsapmeeting.2018.1.0_3821

    CiNii Research

  72. Mechanical properties of Cubic-BN(111) bulk single crystal evaluated by nanoindentation Reviewed

    Deura, M., Kutsukake, K., Ohno, Y., Yonenaga, I., Taniguchi, T.

    Physica status solidi (B) basic research   Vol. 255 ( 5 ) page: 1700473/1 - 1700473/4   2018

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    DOI: 10.1002/pssb.201700473

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  73. Interaction of sodium atoms with stacking faults in silicon with different Fermi levels

    Ohno, Y., Morito, H., Kutsukake, K., Yonenaga, I., Yokoi, T., Nakamura, A., Matsunaga, K.

    Applied physics express   Vol. 11 ( 6 )   2018

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    DOI: 10.7567/APEX.11.061303

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  74. Nanoscopic analysis of oxygen segregation at tilt boundaries in silicon ingots using atom probe tomography combined with TEM and ab initio calculations Reviewed

    Ohno, Y., Inoue, K., Fujiwara, K., Kutsukake, K., Deura, M., Yonenaga, I., Ebisawa, N., Shimizu, Y., Inoue, K., Nagai, Y., Yoshida, H., Takeda, S., Tanaka, S., Kohyama, M.

    Journal of microscopy   Vol. 268 ( 3 ) page: 230 - 238   2017.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/jmi.12602

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  75. Impact of local atomic stress on oxygen segregation at tilt boundaries in silicon Reviewed

    Ohno, Y., Inoue, K., Fujiwara, K., Kutsukake, K., Deura, M., Yonenaga, I., Ebisawa, N., Shimizu, Y., Inoue, K., Nagai, Y., Yoshida, H., Takeda, S., Tanaka, S., Kohyama, M.

    Applied physics letters   Vol. 110 ( 6 ) page: 062105/1 - 062105/5   2017.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/1.4975814

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  76. Synthesis of highly-oriented wurtzite-type BN crystal and evaluation of its mechanical properties using nanoindentation Reviewed

    M. Deura, K. Kutsukake, Y. Ohno, I. Yonenaga, T. Taniguchi

    Japanese Journal of Applied Physics Rapid Communications   Vol. 56 ( 3 ) page: 030301/1 - 030301/4   2017.1

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    DOI: 10.7567/JJAP.56.030301

  77. Effect of grain boundary character of multicrystalline Si on external and internal (phosphorus) gettering of impurities Reviewed

    Joonwichien Supawan, Takahashi Isao, Kutsukake Kentaro, Usami Noritaka

    PROGRESS IN PHOTOVOLTAICS   Vol. 24 ( 12 ) page: 1615-1625   2016.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/pip.2795

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  78. Recombination activity of nickel, copper, and oxygen atoms segregating at grain boundaries in mono-like silicon crystals Reviewed

    Ohno Yutaka, Kutsukake Kentaro, Deura Momoko, Yonenaga Ichiro, Shimizu Yasuo, Ebisawa Naoki, Inoue Koji, Nagai Yasuyoshi, Yoshida Hideto, Takeda Seiji

    APPLIED PHYSICS LETTERS   Vol. 109 ( 14 )   2016.10

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    DOI: 10.1063/1.4964440

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  79. Characterization of silicon ingots: Mono-like versus high-performance multicrystalline Reviewed

    Kutsukake Kentaro, Deura Momoko, Ohno Yutaka, Yonenaga Ichiro

    JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 54 ( 8 )   2015.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.7567/JJAP.54.08KD10

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  80. Elastic properties of indium nitrides grown on sapphire substrates determined by nano-indentation: In comparison with other nitrides Reviewed

    Yonenaga Ichiro, Ohkubo Yasushi, Deura Momoko, Kutsukake Kentaro, Tokumoto Yuki, Ohno Yutaka, Yoshikawa Akihiko, Wang Xin Qiang

    AIP ADVANCES   Vol. 5 ( 7 )   2015.7

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    DOI: 10.1063/1.4926966

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  81. Three-dimensional evaluation of gettering ability for oxygen atoms at small-angle tilt boundaries in Czochralski-grown silicon crystals Reviewed

    Ohno Yutaka, Inoue Kaihei, Fujiwara Kozo, Deura Momoko, Kutsukake Kentaro, Yonenaga Ichiro, Shimizu Yasuo, Inoue Koji, Ebisawa Naoki, Nagai Yasuyoshi

    APPLIED PHYSICS LETTERS   Vol. 106 ( 25 )   2015.6

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    DOI: 10.1063/1.4921742

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  82. Nanoscopic mechanism of Cu precipitation at small-angle tilt boundaries in Si Reviewed

    Ohno Yutaka, Inoue Kaihei, Kutsukake Kentaro, Deura Momoko, Ohsawa Takayuki, Yonenaga Ichiro, Yoshida Hideto, Takeda Seiji, Taniguchi Ryo, Otubo Hideki, Nishitani Sigeto R., Ebisawa Naoki, Shimizu Yasuo, Takamizawa Hisashi, Inoue Koji, Nagai Yasuyoshi

    PHYSICAL REVIEW B   Vol. 91 ( 23 )   2015.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.91.235315

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  83. Czochralski growth of heavily tin-doped Si crystals Reviewed

    Yonenaga I., Taishi T., Inoue K., Gotoh R., Kutsukake K., Tokumoto Y., Ohno Y.

    JOURNAL OF CRYSTAL GROWTH   Vol. 395   page: 94-97   2014.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jcrysgro.2014.02.052

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  84. Slip systems in wurtzite ZnO activated by Vickers indentation on {2(1)over-bar (1)over-bar0} and {10(1)over-bar0} surfaces at elevated temperatures Reviewed

    Ohno Y., Koizumi H., Tokumoto Y., Kutsukake K., Taneichi H., Yonenaga I.

    JOURNAL OF CRYSTAL GROWTH   Vol. 393   page: 119-122   2014.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1010/j.jo-vsgro.2013.11.033

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  85. Czochralski growth of heavily indium-doped Si crystals and co-doping effects of group-IV elements Reviewed

    Inoue K., Taishi T., Tokumoto Y., Kutsukake K., Ohno Y., Ohsawa T., Gotoh R., Yonenaga I.

    JOURNAL OF CRYSTAL GROWTH   Vol. 393   page: 45-48   2014.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jcrysgro.2013.10.033

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  86. Mono-Like Silicon Growth Using Functional Grain Boundaries to Limit Area of Multicrystalline Grains Reviewed

    Kutsukake Kentaro, Usami Noritaka, Ohno Yutaka, Tokumoto Yuki, Yonenaga Ichiro

    IEEE JOURNAL OF PHOTOVOLTAICS   Vol. 4 ( 1 ) page: 84-87   2014.1

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    DOI: 10.1109/JPHOTOV.2013.2281730

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  87. Three-dimensional evaluation of gettering ability of Sigma 3{111} grain boundaries in silicon by atom probe tomography combined with transmission electron microscopy Reviewed

    Ohno Yutaka, Inoue Kaihei, Tokumoto Yuki, Kutsukake Kentaro, Yonenaga Ichiro, Ebisawa Naoki, Takamizawa Hisashi, Shimizu Yasuo, Inoue Koji, Nagai Yasuyoshi, Yoshida Hideto, Takeda Seiji

    APPLIED PHYSICS LETTERS   Vol. 103 ( 10 )   2013.9

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    DOI: 10.1063/1.4820140

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  88. Growth of Si single bulk crystals with low oxygen concentrations by the noncontact crucible method using silica crucibles without Si3N4 coating Reviewed

    Nakajima Kazuo, Murai Ryota, Morishita Kohei, Kutsukake Kentaro

    JOURNAL OF CRYSTAL GROWTH   Vol. 372   page: 121-128   2013.6

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    DOI: 10.1016/j.jcrysgro.2013.03.024

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  89. Interstitial oxygen behavior for thermal double donor formation in germanium: Infrared absorption studies Reviewed

    Inoue K., Taishi T., Tokumoto Y., Murao Y., Kutsukake K., Ohno Y., Suezawa M., Yonenaga I.

    JOURNAL OF APPLIED PHYSICS   Vol. 113 ( 7 )   2013.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/1.4792061

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  90. Control of Grain Boundary Propagation in Mono-Like Si: Utilization of Functional Grain Boundaries Reviewed

    Kutsukake Kentaro, Usami Noritaka, Ohno Yutaka, Tokumoto Yuki, Yonenaga Ichiro

    APPLIED PHYSICS EXPRESS   Vol. 6 ( 2 )   2013.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.7567/APEX.6.025505

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  91. Nanoindentation Hardness and Elastic Modulus of AlGaN Alloys Reviewed

    Tokumoto Y., Taneichi H., Ohno Y., Kutsukake K., Miyake H., Hiramatsu K., Yonenaga I.

    2013 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR)     page: .   2013

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  92. Growth of Si Single Bulk Crystals Inside Si Melts By the Noncontact Crucible Method Using Silica Crucibles Without Coating Si3N4 Particles Reviewed

    Nakajima Kazuo, Murai Ryota, Morishita Kohei, Kutsukake Kentaro

    2013 IEEE 39TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)     page: 174-176   2013

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  93. Dislocation structure in AlN films induced by in situ transmission electron microscope nanoindentation (vol 112, 093526, 2012) Reviewed

    Tokumoto Yuki, Kutsukake Kentaro, Ohno Yutaka, Yonenaga Ichiro

    JOURNAL OF APPLIED PHYSICS   Vol. 112 ( 12 )   2012.12

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    DOI: 10.1063/1.4771927

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  94. Dislocation structure in AlN films induced by in situ transmission electron microscope nanoindentation Reviewed

    Tokumoto Yuki, Kutsukake Kentaro, Ohno Yutaka, Yonenaga Ichiro

    JOURNAL OF APPLIED PHYSICS   Vol. 112 ( 9 )   2012.11

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    DOI: 10.1063/1.4764928

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  95. Growth of high-quality multicrystalline Si ingots using noncontact crucible method Reviewed

    Nakajima Kazuo, Morishita Kohei, Murai Ryota, Kutsukake Kentaro

    JOURNAL OF CRYSTAL GROWTH   Vol. 355 ( 1 ) page: 38-45   2012.9

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    DOI: 10.1016/j.jcrysgro.2012.06.034

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  96. Modeling of incorporation of oxygen and carbon impurities into multicrystalline silicon ingot during one-directional growth Reviewed

    Kutsukake Kentaro, Ise Hideaki, Tokumoto Yuki, Ohno Yutaka, Nakajima Kazuo, Yonenaga Ichiro

    JOURNAL OF CRYSTAL GROWTH   Vol. 352 ( 1 ) page: 173-176   2012.8

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    DOI: 10.1016/j.jcrysgro.2012.02.004

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  97. Growth of multicrystalline Si ingots using noncontact crucible method for reduction of stress Reviewed

    Nakajima Kazuo, Murai Ryota, Morishita Kohei, Kutsukake Kentaro, Usami Noritaka

    JOURNAL OF CRYSTAL GROWTH   Vol. 344 ( 1 ) page: 6-11   2012.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jcrysgro.2012.01.051

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  98. Growth of Heavily Indium doped Si Crystals by Co-Doping of Neutral Impurity Carbon or Germanium Reviewed

    Inoue Kaihei, Tokumoto Yuki, Kutsukake Kentaro, Ohno Yutaka, Yonenaga Ichiro

    MATERIALS INTEGRATION   Vol. 508   page: 220-223   2012

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    DOI: 10.4028/www.scientific.net/KEM.508.220

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  99. Growth of Multicrystalline Si Ingots for Solar Cells Using Noncontact Crucible Method without Touching the Crucible Wall Reviewed

    Nakajima Kazuo, Murai Ryota, Morishita Kohei, Kutsukake Kentaro, Usami Noritaka

    2012 38TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)     page: 1830-1832   2012

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  100. Generation mechanism of dislocations and their clusters in multicrystalline silicon during two-dimensional growth Reviewed

    Kutsukake Kentaro, Abe Takuro, Usami Noritaka, Fujiwara Kozo, Yonenaga Ichiro, Morishita Kohei, Nakajima Kazuo

    JOURNAL OF APPLIED PHYSICS   Vol. 110 ( 8 )   2011.10

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    DOI: 10.1063/1.3652891

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  101. Formation mechanism of twin boundaries during crystal growth of silicon Reviewed

    Kutsukake Kentaro, Abe Takuro, Usami Noritaka, Fujiwara Kozo, Morishita Kohei, Nakajima Kazuo

    SCRIPTA MATERIALIA   Vol. 65 ( 6 ) page: 556-559   2011.9

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    DOI: 10.1016/j.scriptamat.2011.06.028

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  102. Implementation of faceted dendrite growth on floating cast method to realize high-quality multicrsytalline Si ingot for solar cells Reviewed

    Usami Noritaka, Takahashi Isao, Kutsukake Kentaro, Fujiwara Kozo, Nakajima Kazuo

    JOURNAL OF APPLIED PHYSICS   Vol. 109 ( 8 )   2011.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/1.3576108

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  103. Arrangement of dendrite crystals grown along the bottom of Si ingots using the dendritic casting method by controlling thermal conductivity under crucibles Reviewed

    Nakajima Kazuo, Kutsukake Kentaro, Fujiwara Kozo, Morishita Kohei, Ono Satoshi

    JOURNAL OF CRYSTAL GROWTH   Vol. 319 ( 1 ) page: 13-18   2011.3

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    DOI: 10.1016/j.jcrysgro.2011.01.069

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  104. Pattern formation mechanism of a periodically faceted interface during crystallization of Si Reviewed

    Tokairin M., Fujiwara K., Kutsukake K., Kodama H., Usami N., Nakajima K.

    JOURNAL OF CRYSTAL GROWTH   Vol. 312 ( 24 ) page: 3670-3674   2010.12

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    DOI: 10.1016/j.jcrysgro.2010.09.059

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  105. Generation mechanism of dislocations during directional solidification of multicrystalline silicon using artificially designed seed Reviewed

    Takahashi Isao, Usami Noritaka, Kutsukake Kentaro, Stokkan Gaute, Morishita Kohei, Nakajima Kazuo

    JOURNAL OF CRYSTAL GROWTH   Vol. 312 ( 7 ) page: 897-901   2010.3

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    DOI: 10.1016/j.jcrysgro.2010.01.011

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  106. Relationship between grain boundary structures in Si multicrystals and generation of dislocations during crystal growth Reviewed

    Usami Noritaka, Yokoyama Ryusuke, Takahashi Isao, Kutsukake Kentaro, Fujiwara Kozo, Nakajima Kazuo

    JOURNAL OF APPLIED PHYSICS   Vol. 107 ( 1 )   2010.1

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    DOI: 10.1063/1.3276219

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  107. HIGH EFFICIENCY SOLAR CELLS OBTAINED FROM SMALL SIZE INGOTS WITH 30 CM Phi BY CONTROLLING THE DISTRIBUTION AND ORIENTATION OF DENDRITE CRYSTALS GROWN ALONG THE BOTTOM OF THE INGOTS Reviewed

    Nakajima K., Kutsukake K., Fujiwara K., Usami N., Ono S., Yamasaki

    35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE     page: 817-819   2010

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  108. FORMATION MECHANISM OF TWIN BOUNDARIES IN SILICON MULTICRYSTALS DURING CRYSTAL GROWTH Reviewed

    Kutsukake K., Abe T., Usami N., Fujiwara K., Morishita K., Nakajima K.

    35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE     page: .   2010

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  109. Computational Investigation of Relationship between Shear Stress and Multicrystalline Structure in Silicon Reviewed

    Takahashi Isao, Usami Noritaka, Kutsukake Kentaro, Morishita Kohei, Nakajima Kazuo

    JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 49 ( 4 )   2010

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    DOI: 10.1143/JJAP.49.04DP01

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  110. Growth behavior of faceted Si crystals at grain boundary formation Reviewed

    Fujiwara K., Tsumura S., Tokairin M., Kutsukake K., Usami N., Uda S., Nakajima K.

    JOURNAL OF CRYSTAL GROWTH   Vol. 312 ( 1 ) page: 19-23   2009.12

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    DOI: 10.1016/j.jcrysgro.2009.09.055

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  111. Formation mechanism of a faceted interface: In situ observation of the Si(100) crystal-melt interface during crystal growth Reviewed

    Tokairin M., Fujiwara K., Kutsukake K., Usami N., Nakajima K.

    PHYSICAL REVIEW B   Vol. 80 ( 17 )   2009.11

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    DOI: 10.1103/PhysRevB.80.174108

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  112. Microstructures of Si multicrystals and their impact on minority carrier diffusion length Reviewed

    Wang H. Y., Usami N., Fujiwara K., Kutsukake K., Nakajima K.

    ACTA MATERIALIA   Vol. 57 ( 11 ) page: 3268-3276   2009.6

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    DOI: 10.1016/j.actamat.2009.03.033

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  113. Quantitative analysis of subgrain boundaries in Si multicrystals and their impact on electrical properties and solar cell performance Reviewed

    Kutsukake Kentaro, Usami Noritaka, Ohtaniuchi Tsuyoshi, Fujiwara Kozo, Nakajima Kazuo

    JOURNAL OF APPLIED PHYSICS   Vol. 105 ( 4 )   2009.2

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    DOI: 10.1063/1.3079504

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  114. Structural origin of a cluster of bright spots in reverse bias electroluminescence image of solar cells based on Si multicrystals Reviewed

    Usami Noritaka, Kutsukake Kentaro, Fujiwara Kozo, Yonenaga Ichiro, Nakajima Kazuo

    APPLIED PHYSICS EXPRESS   Vol. 1 ( 7 )   2008.7

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    DOI: 10.1143/APEX.1.075001

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  115. Modification of local structures in multicrystals revealed by spatially resolved x-ray rocking curve analysis Reviewed

    Usami Noritaka, Kutsukake Kentaro, Fujiwara Kozo, Nakajima Kazuo

    JOURNAL OF APPLIED PHYSICS   Vol. 102 ( 10 )   2007.11

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    DOI: 10.1063/1.2816207

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  116. Influence of structural imperfection of Sigma 5 grain boundaries in bulk multicrystalline Si on their electrical activities Reviewed

    Kutsukake Kentaro, Usami Noritaka, Fujiwara Kozo, Nose Yoshitaro, Nakajima Kazuo

    JOURNAL OF APPLIED PHYSICS   Vol. 101 ( 6 )   2007.3

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    DOI: 10.1063/1.2710348

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  117. Modification of local structure and its influence on electrical activity of near (310) Sigma 5 grain boundary in bulk silicon Reviewed

    Kutsukake Kentaro, Usami Noritaka, Fujiwara Kozo, Nose Yoshitaro, Sugawara Takamasa, Shishido Toetsu, Nakajima Kazuo

    MATERIALS TRANSACTIONS   Vol. 48 ( 2 ) page: 143-147   2007.2

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    DOI: 10.2320/matertrans.48.143

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  118. Control of strain status in SiGe thin film by epitaxial growth on Si with buried porous layer Reviewed

    Usami Noritaka, Kutsukake Kentaro, Nakajima Kazuo, Amtablian Sevak, Fave Alain, Lemiti Mustapha

    APPLIED PHYSICS LETTERS   Vol. 90 ( 3 )   2007.1

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    DOI: 10.1063/1.2433025

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  119. Realization of bulk multicrystalline silicon with controlled grain boundaries by utilizing spontaneous modification of grain boundary configuration Reviewed

    Usami N, Kutsukake K, Sugawara T, Fujwara K, Pan W, Nose Y, Shishido T, Nakajima K

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS   Vol. 45 ( 3A ) page: 1734-1737   2006.3

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    DOI: 10.1143/JJAP.45.1734

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  120. Growth of multicrystalline Si with controlled grain boundary configuration by the floating zone technique Reviewed

    Kitamura M, Usami N, Sugawara T, Kutsukake K, Fujiwara K, Nose Y, Shishido T, Nakajima K

    JOURNAL OF CRYSTAL GROWTH   Vol. 280 ( 3-4 ) page: 419-424   2005.7

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    DOI: 10.1016/j.jcrysgro.2005.04.049

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  121. Growth of SiGe-on-insulator and its application as a substrate for epitaxy of strained-Si layer Reviewed

    Usami Noritaka, Kutsukake Kentaro, Pan Wugen, Fujiwara Kozo, Ujihara Toru, Zhang Baoping, Yokoyama Takashi, Nakajima Kazuo

    JOURNAL OF CRYSTAL GROWTH   Vol. 275 ( 1-2 ) page: E1203-E1207   2005.2

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    DOI: 10.1016/j.jcrysgro.2004.11.141

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  122. Floating zone growth of Si bicrystals using seed crystals with artificially designed grain boundary configuration Reviewed

    Usami N, Kitamura M, Sugawara T, Kutsukake K, Ohdaira K, Nose Y, Fujiwara K, Shishido T, Nakajima K

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS   Vol. 44 ( 24-27 ) page: L778-L780   2005

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    DOI: 10.1143/JJAP.44.L778

    Web of Science

  123. On the origin of strain fluctuation in strained-Si grown on SiGe-on-insulator and SiGe virtual substrates Reviewed

    Kutsukake K, Usami N, Ujihara T, Fujiwara K, Sazaki G, Nakajima K

    APPLIED PHYSICS LETTERS   Vol. 85 ( 8 ) page: 1335-1337   2004.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/1.1784036

    Web of Science

  124. Fabrication of SiGe-on-insulator by rapid thermal annealing of Ge on Si-on-insulator substrate Reviewed

    Kutsukake K, Usami N, Fujiwara K, Ujihara T, Sazaki G, Nakajima K, Zhang BP, Segawa Y

    APPLIED SURFACE SCIENCE   Vol. 224 ( 1-4 ) page: 95-98   2004.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.apsusc.2003.08.100

    Web of Science

  125. Fabrication of SiGe-on-insulator through thermal diffusion of Ge on Si-on-insulator substrate Reviewed

    Kutsukake K, Usami N, Fujiwara K, Ujihara T, Sazaki G, Zhang BP, Segawa Y, Nakajima K

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS   Vol. 42 ( 3A ) page: L232-L234   2003.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1143/JJAP.42.L232

    Web of Science

▼display all

Books 5

  1. 多結晶マテリアルズインフォマティクス

    宇佐美 徳隆, 大野 裕 , 沓掛 健太朗, 工藤 博章, 小島 拓人, 横井 達矢( Role: Joint author)

    共立出版  2024.5  ( ISBN:9784320140035

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    Language:Japanese

    CiNii Books

  2. データ駆動型材料開発 : オントロジーとマイニング、計測と実験装置の自動制御

    ( Role: Contributor ,  無機材料プロセス開発MI, pp. 131-139)

    エヌ・ティー・エス  2021.11  ( ISBN:9784860437596

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    Total pages:3, 6, 244, 6, 図版26p   Language:Japanese

    CiNii Books

  3. マテリアルズインフォマティクスのためのデータ作成とその解析、応用事例

    ( Role: Contributor ,  結晶成長プロセスへの機械学習応用, pp. 311-316)

    技術情報協会  2021.7  ( ISBN:9784861048548

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    Total pages:500p   Language:Japanese

    CiNii Books

  4. マテリアルズ・インフォマティクスQ&A集 : 解析実務と応用事例

    ( Role: Contributor ,  第7章問13:MIによる半導体材料関連の開発例とは?, pp. 361-366, 第8章第2節問2:MIによるエレクトロニクス/半導体材料関連での研究状況とは?, pp. 479-486)

    情報機構  2020.12  ( ISBN:9784865022049

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    Total pages:xix, 597p   Language:Japanese

    CiNii Books

  5. Handbook of Solar Silicon

    ( Role: Contributor ,  Growth of crystalline silicon for solar cells: the mono-like method, pp. 1-20)

    2018 

MISC 2

  1. Opening

    Kutsukake Kentaro, Chikyow Toyohiro, Kotsugi Masato, Tomiya Shigetaka, Harada Shunta

    JSAP Annual Meetings Extended Abstracts   Vol. 2021.1   page: 227 - 227   2021.2

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    Language:Japanese   Publisher:The Japan Society of Applied Physics  

    DOI: 10.11470/jsapmeeting.2021.1.0_227

  2. Design of High-quality SiC Solution Growth Condition Assisted by Machine Learning

    Harada Shunta, Lin Hung-Yi, Tsunooka Yosuke, Zhu Can, Narumi Taka, Kutsukake Kentaro, Ujihara Toru

    Materia Japan   Vol. 59 ( 3 ) page: 145 - 152   2020

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    Language:Japanese   Publisher:The Japan Institute of Metals and Materials  

    DOI: 10.2320/materia.59.145

    CiNii Books

    CiNii Research

Presentations 431

  1. 材料プロセスシミュレーション画像の機械学習 Invited

    沓掛健太朗

    電子情報通信学会総合大会  2025.3.27 

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    Event date: 2025.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  2. 半導体熱処理条件の最適化における既存条件を考慮した目的関数の検討

    沓掛健太朗、笠原亮太郎、原田俊太、宇治原徹、関翔太、高石将暉、永井勇太

    第72回応用物理学会春季学術講演会  2025.3.17 

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    Event date: 2025.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  3. Materials process informatics for crystal growth Invited International conference

    Kentaro Kutsukake

    IIndInternational Conference on Emerging Nanomaterials in Chemical, Biological and Engineering Applications  2025.3.13 

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    Event date: 2025.3

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:India  

  4. インフォマティクスによる結晶工学シミュレーションの加速 Invited

    沓掛健太朗

    第29回結晶工学セミナー,第9回インフォマティクス応用研究会  2025.2.20 

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    Event date: 2025.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  5. 半導体結晶プロセス開発へのインフォマティクス応用 Invited

    沓掛健太朗

    プロセスインフォマティクスセミナー(4)  2025.2.19 

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    Event date: 2025.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  6. Simulation and AI in Crystal growth Invited International conference

    Kentaro Kutsukake

    27th National Seminar on Crystal Growth and Applications  2025.2.7 

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    Event date: 2025.2

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:DAE-Convention Centre   Country:India  

  7. Application of machine learning for crystal growth research Invited International conference

    Kentaro Kutsukake

    Indo-Romania Joint Workshop on Advanced Crystal Growth Technology  2025.2.5 

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    Event date: 2025.2

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:India  

  8. Application of machine learning in the field of applied physics Invited International conference

    Kentaro Kutsukake

    3rd International Conference on Functional Materials for NextGen Applications ICFMNA-25  2025.2.4 

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    Event date: 2025.2

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Sona College of Technology, Salem   Country:India  

  9. Application of Machine Learning in the Field of Crystal Growth Invited International conference

    Kentaro Kutsukake

    International Conference on Sustainable Materials and Advances in Regenerative Technologies  2025.1.31 

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    Event date: 2025.1 - 2025.2

    Language:English   Presentation type:Oral presentation (keynote)  

    Country:India  

  10. Machine learning applications to applied physics research Invited International conference

    Kentaro Kutsukake

    ACT NEXT 2024  2025.1.27 

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    Event date: 2025.1

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:India  

  11. Material process informatics for crystal growth Invited International conference

    Kentaro Kutsukake

    International Conference on Advanced Materials and Technologies [AMT-2025] &Indo-Japan Workshop on Machine Learning for Advancing Crystal Growth Technology [MLACGT-2025]  2025.1.8 

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    Event date: 2025.1

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Mini Auditorium, SSN Institutions   Country:India  

  12. Application of information science and technology for crystal growth Invited International conference

    International Conference on Innovative Horizons in Material Research: Growth, Characterization and Applications  2024.12.21 

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    Event date: 2024.12

    Language:English   Presentation type:Oral presentation (invited, special)  

  13. AI を活用した材料プロセス開発 ー半導体結晶成長を中心にー Invited

    沓掛健太朗

    第2回『生産現場におけるプロセス・インフォマティクス(PI) によるものづくり革新』研究会  2024.12.20 

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    Event date: 2024.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  14. 半導体材料・デバイス開発へのインフォマティクス応用 Invited

    沓掛健太朗

    第11 回電子光技術 / G a N – O I L合同シンポジウム  2024.12.19 

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    Event date: 2024.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  15. Practical Bayesian Optimization for Chemical Vapor Deposition of Semiconductors Invited

    Kentaro Kutsukake

    2024.12.18 

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    Event date: 2024.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  16. Quick Analysis and Adaptive Mapping of Micro-Beam X-Ray Diffraction Through Machine Learning International conference

    Kentaro Kutsukake, Kota Matsui, Ichiro Takeuchi, Takashi Segi, Takuo Sasaki, Seiji Fujikawa, Masamitu Takahasi

    2024 MRS Fall Meeting & Exhibit  2024.12.2 

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    Event date: 2024.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  17. Quick analysis of X-ray diffraction patterns through machine learning International conference

    Kentaro Kutsukake, Kota Matsui, Ichiro Takeuchi, Takashi Segi, Takuo Sasaki, Seiji Fujikawa, Masamitu Takahasi

    35th International Conference on Photovoltaic Science and Engineering(PVSEC-35)  2024.11.11 

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    Event date: 2024.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  18. 工学・理学研究への情報科学応用の課題と展望 -専門知識をどのように入れるか- Invited

    沓掛健太朗

    第27回情報論的学習理論ワークショップ(IBIS2024)  2024.11.5  電子情報通信学会 情報論的学習理論と機械学習研究会

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    Event date: 2024.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:ソニックシティ(さいたま)   Country:Japan  

  19. 半導体結晶プロセス開発へのインフォマティクス応用 Invited

    沓掛健太朗

    第1回半導体結晶技術に関する産学連携ワークショップ  2024.11.1  応用物理学会「半導体の結晶成長と加工および評価に関する産学連携委員会」

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    Event date: 2024.10 - 2024.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:大阪大学豊中キャンパス基礎工学国際棟   Country:Japan  

  20. 多様な誤差を考慮した製造装置シミュレーションのデータ同化

    沓掛健太朗, 竹野思温, 太田壮音, 竹内 一郎, 宇治原徹

    第37 回計算力学講演会(CMD2024)  2024.10.18 

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    Event date: 2024.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:トークネットホール仙台   Country:Japan  

  21. Data assimilation for crystal growth simulation incorporating multiple uncertainties using machine learning International conference

    Kentaro Kutsukake, Shion Takeno, Masato Ota, Ichiro Takeuchi, Toru Ujihara

    The 11th INTERNATIONAL WORKSHOP ON MODELLING IN CRYSTAL GROWTH  2024.9.24 

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    Event date: 2024.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Romania  

  22. Artificial Intelligence Invited International conference

    Kentaro Kutsukake

    1st INTERNATIONAL SCHOOL ON MODELLING IN CRYSTAL GROWTH   2024.9.21 

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    Event date: 2024.9

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Romania  

  23. マテリアルズ・プロセスインフォマティクスと 水素貯蔵材料開発への応用 Invited

    沓掛健太朗

    日本MRS水素科学技術連携研究会 第14回トピックス研究会 ~物理学分科会~  2024.7.29 

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    Event date: 2024.7

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  24. AI技術ができること、できないこと、できるかもしれないこと Invited

    沓掛健太朗

    東北大学金属材料研究所テクニカルセンター研修会  2023.12.14 

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    Event date: 2023.12

    Language:Japanese  

    Venue:東北大学金属材料研究所   Country:Japan  

  25. AI技術ができること、できないこと、できるかもしれないこと Invited

    沓掛健太朗

    東北大学金属材料研究所テクニカルセンター研修会  2023.12.14 

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    Event date: 2023.12

    Language:Japanese  

    Venue:東北大学金属材料研究所   Country:Japan  

  26. 3種類の回帰モデルを駆使したベイズ最適化によるCat-CVD i-a-Siの堆積条件検討

    沓掛健太朗

    第52回結晶成長国内会議  2023.12.6 

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    Event date: 2023.12

    Language:Japanese  

    Venue:ウインク愛知   Country:Japan  

  27. 3種類の回帰モデルを駆使したベイズ最適化によるCat-CVD i-a-Siの堆積条件検討

    沓掛健太朗

    第52回結晶成長国内会議  2023.12.6 

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    Event date: 2023.12

    Language:Japanese  

    Venue:ウインク愛知   Country:Japan  

  28. 結晶工学×データ科学 Invited

    沓掛健太朗

    MI×データ科学コース  2023.11.22 

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    Event date: 2023.11

    Language:Japanese  

    Venue:Web   Country:Japan  

  29. 結晶工学×データ科学 Invited

    沓掛健太朗

    MI×データ科学コース  2023.11.22 

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    Event date: 2023.11

    Language:Japanese  

    Venue:Web   Country:Japan  

  30. 半導体材料および加工における実験とシミュレーションへのプロセスインフォマティクス適用 Invited

    沓掛健太朗

    R052DXプラズマプロセス委員会第3回研究会  2023.10.31 

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    Event date: 2023.10

    Language:Japanese  

    Venue:ベルサール八重洲   Country:Japan  

  31. 半導体材料および加工における実験とシミュレーションへのプロセスインフォマティクス適用 Invited

    沓掛健太朗

    R052DXプラズマプロセス委員会第3回研究会  2023.10.31 

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    Event date: 2023.10

    Language:Japanese  

    Venue:ベルサール八重洲   Country:Japan  

  32. AIを活用した半導体材料・デバイス開発 Invited

    沓掛健太朗

    令和5年電気学会 基礎・材料・共通部門大会  2023.9.8 

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    Event date: 2023.9

    Language:Japanese  

    Venue:愛知工業大学   Country:Japan  

  33. AIを活用した半導体材料・デバイス開発 Invited

    沓掛健太朗

    令和5年電気学会 基礎・材料・共通部門大会  2023.9.8 

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    Event date: 2023.9

    Language:Japanese  

    Venue:愛知工業大学   Country:Japan  

  34. 材料プロセスインフォマティクス~ 人と共に ~ Invited

    沓掛健太朗

    第1回感性材料の評価用AIの開発に関する研究会   2023.8.24 

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    Event date: 2023.8

    Language:Japanese  

    Venue:ウインク愛知   Country:Japan  

  35. 材料プロセスインフォマティクス~ 人と共に ~ Invited

    沓掛健太朗

    第1回感性材料の評価用AIの開発に関する研究会   2023.8.24 

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    Event date: 2023.8

    Language:Japanese  

    Venue:ウインク愛知   Country:Japan  

  36. Machine learning applications for crystal growth Invited International conference

    Kentaro Kutsukake

    The International Conference on Crystal Growth and Epitaxy-ICCGE-20  2023.7.31 

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    Event date: 2023.7 - 2023.8

    Language:English  

    Venue:University Campus (Complesso universitario di) San Giovanni a Teduccio Corso Nicolangelo Protopisani   Country:Italy  

  37. Machine learning applications for crystal growth Invited International conference

    Kentaro Kutsukake

    The International Conference on Crystal Growth and Epitaxy-ICCGE-20  2023.7.31 

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    Event date: 2023.7 - 2023.8

    Language:English  

    Venue:University Campus (Complesso universitario di) San Giovanni a Teduccio Corso Nicolangelo Protopisani   Country:Italy  

  38. Materials process informatics for semiconductors Invited International conference

    Kentaro Kutsukake

    The 9th International Symposium on Organic and Inorganic Electronic Materials and Related Nonotechonologyies  2023.6.8 

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    Event date: 2023.6

    Language:English  

    Country:Japan  

  39. Materials process informatics for semiconductors Invited International conference

    Kentaro Kutsukake

    The 9th International Symposium on Organic and Inorganic Electronic Materials and Related Nonotechonologyies  2023.6.8 

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    Event date: 2023.6

    Language:English  

    Country:Japan  

  40. Bayesian optimization for PV material processes Invited International conference

    Kentaro Kutsukake

    2nd Indo-Japan Joint Workshop on Photovoltaics  2023.3.9 

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    Event date: 2023.3

    Language:English  

    Venue:ISS institute   Country:India  

  41. Bayesian optimization for PV material processes Invited International conference

    Kentaro Kutsukake

    2nd Indo-Japan Joint Workshop on Photovoltaics  2023.3.9 

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    Event date: 2023.3

    Language:English  

    Venue:ISS institute   Country:India  

  42. Process informatics for crystal growth Invited International conference

    Kentaro Kutsukake

    3rd Modeling of Crystal Growth Processes and Devices 

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    Event date: 2023.3

    Language:English  

    Venue:ISS institute   Country:India  

  43. Process informatics for crystal growth Invited International conference

    Kentaro Kutsukake

    3rd Modeling of Crystal Growth Processes and Devices 

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    Event date: 2023.3

    Language:English  

    Venue:ISS institute   Country:India  

  44. 材料プロセスインフォマティクスの取組みと展望 Invited

    沓掛健太朗

    ニューセラミックス懇話会  2023.2.28 

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    Event date: 2023.2

    Language:Japanese  

    Venue:大阪産業創造館   Country:Japan  

  45. 材料プロセスインフォマティクスの取組みと展望 Invited

    沓掛健太朗

    ニューセラミックス懇話会  2023.2.28 

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    Event date: 2023.2

    Language:Japanese  

    Venue:大阪産業創造館   Country:Japan  

  46. Bayesian optimization for material processes Invited International conference

    Kentaro Kutsukake

    4th IKZ-FAIRmat winterschool  2023.1.25 

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    Event date: 2023.1

    Language:English  

    Venue:Erwin-Schrödinger-Zentrum - Humboldt-Universität zu Berlin   Country:Germany  

  47. Bayesian optimization for material processes Invited International conference

    Kentaro Kutsukake

    4th IKZ-FAIRmat winterschool  2023.1.25 

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    Event date: 2023.1

    Language:English  

    Venue:Erwin-Schrödinger-Zentrum - Humboldt-Universität zu Berlin   Country:Germany  

  48. プロセスインフォマティクスを活用したエネルギー材料開発 Invited

    沓掛健太朗

    第27回宮崎大学未来エネルギープロジェクト講演会  2022.12.12 

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    Event date: 2022.12

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  49. プロセスインフォマティクスを活用したエネルギー材料開発 Invited

    沓掛健太朗

    第27回宮崎大学未来エネルギープロジェクト講演会  2022.12.12 

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    Event date: 2022.12

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  50. Machine Learning and its Application to Research and Development of Photovoltaics- Materials Informatics, Process Informatics and Measurement Informatics for PV – Invited International conference

    Kentaro Kutsukake

    International Photovoltaic Science and Engineering Conference  2022.11.13 

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    Event date: 2022.11

    Language:English  

  51. Machine Learning and its Application to Research and Development of Photovoltaics- Materials Informatics, Process Informatics and Measurement Informatics for PV – Invited International conference

    Kentaro Kutsukake

    International Photovoltaic Science and Engineering Conference  2022.11.13 

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    Event date: 2022.11

    Language:English  

  52. 結晶成長のデジタルツインによるプロセスインフォマティクス Invited

    沓掛健太朗

    MNC 2022 技術セミナー「最先端デバイスとデータ駆動型開発の可能性」  2022.11.8 

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    Event date: 2022.11

    Language:Japanese  

    Venue:JR ホテルクレメント徳島   Country:Japan  

  53. 結晶成長のデジタルツインによるプロセスインフォマティクス Invited

    沓掛健太朗

    MNC 2022 技術セミナー「最先端デバイスとデータ駆動型開発の可能性」  2022.11.8 

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    Event date: 2022.11

    Language:Japanese  

    Venue:JR ホテルクレメント徳島   Country:Japan  

  54. SiC結晶成長に対するマテリアルズインフォマティクス技術の開発 Invited

    沓掛健太朗

    日本学術振興会「結晶加工と評価技術」第145委員会 第176回研究会  2022.10.21 

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    Event date: 2022.10

    Language:Japanese  

    Venue:Web   Country:Japan  

  55. SiC結晶成長に対するマテリアルズインフォマティクス技術の開発 Invited

    沓掛健太朗

    日本学術振興会「結晶加工と評価技術」第145委員会 第176回研究会  2022.10.21 

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    Event date: 2022.10

    Language:Japanese  

    Venue:Web   Country:Japan  

  56. 結晶成長とAI技術 ~新しい道具を使って効率よく研究をしよう~ Invited

    沓掛健太朗

    第41回電子材料シンポジウム  2022.10.19 

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    Event date: 2022.10

    Language:Japanese  

    Venue:ダイワロイヤルホテル THE KASHIHARA   Country:Japan  

  57. 結晶成長とAI技術 ~新しい道具を使って効率よく研究をしよう~ Invited

    沓掛健太朗

    第41回電子材料シンポジウム  2022.10.19 

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    Event date: 2022.10

    Language:Japanese  

    Venue:ダイワロイヤルホテル THE KASHIHARA   Country:Japan  

  58. Applications of machine learning to crystal growth research Invited International conference

    Kentaro Kutsukake

    The 10th International Workshop on Modeling in Crystal Growth  2022.10.17 

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    Event date: 2022.10

    Language:English  

  59. Applications of machine learning to crystal growth research Invited International conference

    Kentaro Kutsukake

    The 10th International Workshop on Modeling in Crystal Growth  2022.10.17 

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    Event date: 2022.10

    Language:English  

  60. マテリアル・プロセスインフォマティクスについての取組みと展望 Invited

    沓掛健太朗

    名古屋大学マテリアルDX講演会  2022.9.29 

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    Event date: 2022.9

    Language:Japanese  

    Venue:名古屋大学   Country:Japan  

  61. マテリアル・プロセスインフォマティクスについての取組みと展望 Invited

    沓掛健太朗

    名古屋大学マテリアルDX講演会  2022.9.29 

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    Event date: 2022.9

    Language:Japanese  

    Venue:名古屋大学   Country:Japan  

  62. 多段プロセスに対するベイズ最適化の提案 -太陽電池プロセスを例に-

    沓掛健太朗

    2022年第83回応用物理学会秋季学術講演会  2022.9.22 

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    Event date: 2022.9

    Language:Japanese  

    Venue:東北大学, Web   Country:Japan  

  63. 専門家の知識を入れたものづくりのためのデータ同化(i)-手法の提案-

    沓掛健太朗

    2022年第83回応用物理学会秋季学術講演会  2022.9.22 

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    Event date: 2022.9

    Language:Japanese  

    Venue:東北大学, Web   Country:Japan  

  64. 多段プロセスに対するベイズ最適化の提案 -太陽電池プロセスを例に-

    沓掛健太朗

    2022年第83回応用物理学会秋季学術講演会  2022.9.22 

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    Event date: 2022.9

    Language:Japanese  

    Venue:東北大学, Web   Country:Japan  

  65. 専門家の知識を入れたものづくりのためのデータ同化(i)-手法の提案-

    沓掛健太朗

    2022年第83回応用物理学会秋季学術講演会  2022.9.22 

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    Event date: 2022.9

    Language:Japanese  

    Venue:東北大学, Web   Country:Japan  

  66. How will machine learning change crystal growth research? Invited International conference

    Kentaro Kutsukake

    7th European Conference on Crystal Growth  2022.7.25 

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    Event date: 2022.7

    Language:English  

    Venue:Paris   Country:France  

  67. How will machine learning change crystal growth research? Invited International conference

    Kentaro Kutsukake

    7th European Conference on Crystal Growth  2022.7.25 

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    Event date: 2022.7

    Language:English  

    Venue:Paris   Country:France  

  68. 実験屋が機械学習を活用して取り組む太陽電池結晶素材開発 Invited

    沓掛健太朗

    日本学術振興会 R032 産業イノベーションのための結晶成長委員会 第 8 回研究会  2022.7.15 

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    Event date: 2022.7

    Language:Japanese  

    Venue:名古屋大学, Web   Country:Japan  

  69. 実験屋が機械学習を活用して取り組む太陽電池結晶素材開発 Invited

    沓掛健太朗

    日本学術振興会 R032 産業イノベーションのための結晶成長委員会 第 8 回研究会  2022.7.15 

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    Event date: 2022.7

    Language:Japanese  

    Venue:名古屋大学, Web   Country:Japan  

  70. インフォマティクス応用においてリアル実験とシミュレーションのデータをどう使うか Invited

    沓掛健太朗

    第4回多結晶材料情報学応用技術研究会  2022.7.11 

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    Event date: 2022.7

    Language:Japanese  

    Venue:ウインク愛知, Web   Country:Japan  

  71. インフォマティクス応用においてリアル実験とシミュレーションのデータをどう使うか Invited

    沓掛健太朗

    第4回多結晶材料情報学応用技術研究会  2022.7.11 

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    Event date: 2022.7

    Language:Japanese  

    Venue:ウインク愛知, Web   Country:Japan  

  72. インフォマティクス応用の概要とPV研究への適用 Invited

    沓掛健太朗

    応用物理学会インフォマティクス応用研究会 第5回研究会  2022.6.15 

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    Event date: 2022.6

    Language:Japanese  

    Venue:Web   Country:Japan  

  73. インフォマティクス応用の概要とPV研究への適用 Invited

    沓掛健太朗

    応用物理学会インフォマティクス応用研究会 第5回研究会  2022.6.15 

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    Event date: 2022.6

    Language:Japanese  

    Venue:Web   Country:Japan  

  74. 機械学習を用いたCZ-Si結晶中酸素不純物濃度へのプロセスパラメータの影響評価

    沓掛健太朗

    2022年第69回応用物理学会春季学術講演会  2022.3.26 

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    Event date: 2022.3

    Language:Japanese  

    Venue:青山学院大学, Web   Country:Japan  

  75. 空間分布の滑らかさを制約とした放射光X線回折パターンの特徴抽出

    沓掛健太朗

    2022年第69回応用物理学会春季学術講演会  2022.3.24 

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    Event date: 2022.3

    Language:Japanese  

    Venue:青山学院大学, Web   Country:Japan  

  76. 機械学習を用いたCZ-Si結晶中酸素不純物濃度へのプロセスパラメータの影響評価

    沓掛健太朗

    2022年第69回応用物理学会春季学術講演会  2022.3.26 

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    Event date: 2022.3

    Language:Japanese  

    Venue:青山学院大学, Web   Country:Japan  

  77. 空間分布の滑らかさを制約とした放射光X線回折パターンの特徴抽出

    沓掛健太朗

    2022年第69回応用物理学会春季学術講演会  2022.3.24 

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    Event date: 2022.3

    Language:Japanese  

    Venue:青山学院大学, Web   Country:Japan  

  78. Continuous evaluation of carrier recombination velocity of grain boundaries in multicrystalline Si using machine learning International conference

    Kentaro Kutsukake

    2021 MRS Fall Meeting  2021.12.7 

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    Event date: 2021.11 - 2021.12

    Language:English  

  79. Continuous evaluation of carrier recombination velocity of grain boundaries in multicrystalline Si using machine learning International conference

    Kentaro Kutsukake

    2021 MRS Fall Meeting  2021.12.7 

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    Event date: 2021.11 - 2021.12

    Language:English  

  80. Bayesian optimization of process conditions for grinding process of SiC International conference

    Kentaro Kutsukake

    2021.11.5 

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    Event date: 2021.11

    Language:English  

  81. Bayesian optimization of process conditions for grinding process of SiC International conference

    Kentaro Kutsukake

    2021.11.5 

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    Event date: 2021.11

    Language:English  

  82. 機械学習による発光強度プロファイルからの粒界再結合速度の推定

    沓掛健太朗

    第18回「次世代の太陽光発電システム」シンポジウム  2021.10.15 

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    Event date: 2021.10

    Language:Japanese  

    Venue:Web   Country:Japan  

  83. 機械学習による発光強度プロファイルからの粒界再結合速度の推定

    沓掛健太朗

    第18回「次世代の太陽光発電システム」シンポジウム  2021.10.15 

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    Event date: 2021.10

    Language:Japanese  

    Venue:Web   Country:Japan  

  84. 半導体Siの結晶成長プロセスにおける機械学習応用 Invited

    沓掛健太朗

    第51回IEEE EPS Japan Chapter イブニングミーティング  2021.9.24 

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    Event date: 2021.9

    Language:Japanese  

    Venue:Web   Country:Japan  

  85. 半導体Siの結晶成長プロセスにおける機械学習応用 Invited

    沓掛健太朗

    第51回IEEE EPS Japan Chapter イブニングミーティング  2021.9.24 

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    Event date: 2021.9

    Language:Japanese  

    Venue:Web   Country:Japan  

  86. 機械学習による発光強度プロファイルからの粒界再結合速度の推定

    沓掛健太朗

    第82回応用物理学会秋季学術講演会  2021.9.10 

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    Event date: 2021.9

    Language:Japanese  

    Venue:Web   Country:Japan  

  87. 機械学習による発光強度プロファイルからの粒界再結合速度の推定

    沓掛健太朗

    第82回応用物理学会秋季学術講演会  2021.9.10 

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    Event date: 2021.9

    Language:Japanese  

    Venue:Web   Country:Japan  

  88. 実際の材料プロセス実験への機械学習応用とその課題 Invited

    沓掛健太朗

    第139回フロンティア材料研究所学術講演会 データ科学の最前線 -合成・計測実験との協働へ向けて-  2021.8.31 

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    Event date: 2021.8

    Language:Japanese  

    Venue:Web   Country:Japan  

  89. 実際の材料プロセス実験への機械学習応用とその課題 Invited

    沓掛健太朗

    第139回フロンティア材料研究所学術講演会 データ科学の最前線 -合成・計測実験との協働へ向けて-  2021.8.31 

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    Event date: 2021.8

    Language:Japanese  

    Venue:Web   Country:Japan  

  90. 材料作製・評価への機械学習を用いた最適化の適用と課題 Invited

    沓掛健太朗

    解析・設計の代替モデリング研究会第3回研究会  2021.7.13 

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    Event date: 2021.7

    Language:Japanese  

    Venue:Web   Country:Japan  

  91. 材料作製・評価への機械学習を用いた最適化の適用と課題 Invited

    沓掛健太朗

    解析・設計の代替モデリング研究会第3回研究会  2021.7.13 

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    Event date: 2021.7

    Language:Japanese  

    Venue:Web   Country:Japan  

  92. Application of Machine learning to Czochralski Growth of Silicon Invited International conference

    Kentaro Kutsukake

    2nd International Symposium on Modeling of Crystal Growth Processes and Devic  2021.7.5 

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    Event date: 2021.7

    Language:English  

  93. Application of Machine learning to Czochralski Growth of Silicon Invited International conference

    Kentaro Kutsukake

    2nd International Symposium on Modeling of Crystal Growth Processes and Devic  2021.7.5 

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    Event date: 2021.7

    Language:English  

  94. Application of Machine Learning for Crystal Growth of Bulk and Film Silicon Invited International conference

    Kentaro Kutsukake

    The 28th International Workshop on Active-Matrix Flat panel Displays and Devices ―TFT Technologies and FPD Materials―  2021.6.29 

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    Event date: 2021.6 - 2021.7

    Language:English  

  95. Application of Machine Learning for Crystal Growth of Bulk and Film Silicon Invited International conference

    Kentaro Kutsukake

    The 28th International Workshop on Active-Matrix Flat panel Displays and Devices ―TFT Technologies and FPD Materials―  2021.6.29 

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    Event date: 2021.6 - 2021.7

    Language:English  

  96. 材料プロセス開発における実践的なベイズ最適化 ~CVD 法によるエピタキシャル Si 成長を例に~ Invited

    沓掛健太朗

    第33回電⼦デバイス実装研究委員会  2021.6.7 

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    Event date: 2021.6

    Language:Japanese  

    Venue:Web   Country:Japan  

  97. 材料プロセス開発における実践的なベイズ最適化 ~CVD 法によるエピタキシャル Si 成長を例に~ Invited

    沓掛健太朗

    第33回電⼦デバイス実装研究委員会  2021.6.7 

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    Event date: 2021.6

    Language:Japanese  

    Venue:Web   Country:Japan  

  98. Application of machine learning to Czochralski growth of Si Invited International conference

    Kentaro Kutsukake

    International Conference on Sustainable Materials and Technologies for Energy and Bio Applications  2021.5.19 

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    Event date: 2021.5

    Language:English  

  99. Application of machine learning to Czochralski growth of Si Invited International conference

    Kentaro Kutsukake

    International Conference on Sustainable Materials and Technologies for Energy and Bio Applications  2021.5.19 

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    Event date: 2021.5

    Language:English  

  100. 「材料プロセス」および計測へのAI/ML応用について Invited

    沓掛健太朗

    日本学術振興会研究開発専門委員会「自律型・複合型AI先端計測の新しい価値創造」第11回委員会  2021.1.21 

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    Event date: 2021.1

    Language:Japanese  

    Venue:Web   Country:Japan  

  101. 「材料プロセス」および計測へのAI/ML応用について Invited

    沓掛健太朗

    日本学術振興会研究開発専門委員会「自律型・複合型AI先端計測の新しい価値創造」第11回委員会  2021.1.21 

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    Event date: 2021.1

    Language:Japanese  

    Venue:Web   Country:Japan  

  102. プログラムコードで学ぶ機械学習基礎 Invited

    沓掛健太朗

    第1回 インフォマティクス応用研究グループ チュートリアル  2020.12.24 

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    Event date: 2020.12

    Language:Japanese  

    Venue:Web   Country:Japan  

  103. プログラムコードで学ぶ機械学習基礎 Invited

    沓掛健太朗

    第1回 インフォマティクス応用研究グループ チュートリアル  2020.12.24 

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    Event date: 2020.12

    Language:Japanese  

    Venue:Web   Country:Japan  

  104. プログラムコードで学ぶ機械学習基礎 Invited

    沓掛健太朗

    第1回 インフォマティクス応用研究グループ チュートリアル  2020.12.17 

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    Event date: 2020.12

    Language:Japanese  

    Venue:Web   Country:Japan  

  105. プログラムコードで学ぶ機械学習基礎 Invited

    沓掛健太朗

    第1回 インフォマティクス応用研究グループ チュートリアル  2020.12.17 

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    Event date: 2020.12

    Language:Japanese  

    Venue:Web   Country:Japan  

  106. 放射光実験におけるオンサイト機械学習の活用と課題 Invited

    沓掛健太朗

    2020年日本表面真空学会学術講演会  2020.11.19 

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    Event date: 2020.11

    Language:Japanese  

    Venue:Web   Country:Japan  

  107. 放射光実験におけるオンサイト機械学習の活用と課題 Invited

    沓掛健太朗

    2020年日本表面真空学会学術講演会  2020.11.19 

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    Event date: 2020.11

    Language:Japanese  

    Venue:Web   Country:Japan  

  108. 結晶成長の機械学習のためのデータ取得:どこで何を計測するか Invited

    沓掛健太朗

    第49回結晶成長国内会議(JCCG-49)  2020.11.9 

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    Event date: 2020.11

    Language:Japanese  

    Venue:Web   Country:Japan  

  109. 結晶成長の機械学習のためのデータ取得:どこで何を計測するか Invited

    沓掛健太朗

    第49回結晶成長国内会議(JCCG-49)  2020.11.9 

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    Event date: 2020.11

    Language:Japanese  

    Venue:Web   Country:Japan  

  110. 機械学習の結晶工学への応用 Invited

    沓掛健太朗

    第17回薄膜材料デバイス研究会  2020.11.5 

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    Event date: 2020.11

    Language:Japanese  

    Venue:Web   Country:Japan  

  111. 機械学習の結晶工学への応用 Invited

    沓掛健太朗

    第17回薄膜材料デバイス研究会  2020.11.5 

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    Event date: 2020.11

    Language:Japanese  

    Venue:Web   Country:Japan  

  112. 機械学習によるシミュレーションの逆問題推定~PLプロファイルからの粒界再結合速度の直接推定~

    沓掛健太朗

    第17回「次世代の太陽光発電システム」シンポジウム  2020.10.15 

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    Event date: 2020.10

    Language:Japanese  

    Venue:Web   Country:Japan  

  113. 機械学習によるシミュレーションの逆問題推定~PLプロファイルからの粒界再結合速度の直接推定~

    沓掛健太朗

    第17回「次世代の太陽光発電システム」シンポジウム  2020.10.15 

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    Event date: 2020.10

    Language:Japanese  

    Venue:Web   Country:Japan  

  114. Application of machine learning to optimize sensor positions for accurate monitoring Invited International conference

    Kentaro Kutsukake

    International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) 2020  2020.9.30 

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    Event date: 2020.9 - 2020.10

    Language:English  

  115. Application of machine learning to optimize sensor positions for accurate monitoring Invited International conference

    Kentaro Kutsukake

    International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) 2020  2020.9.30 

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    Event date: 2020.9 - 2020.10

    Language:English  

  116. プログラムコードを触って学ぶ機械学習 Invited

    沓掛健太朗

    第81回応用物理学秋季学術講演会チュートリアル  2020.9.9 

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    Event date: 2020.9

    Language:Japanese  

    Venue:Web   Country:Japan  

  117. 材料プロセスの実験への機械学習の応用と課題 Invited

    沓掛健太朗

    第81回応用物理学秋季学術講演会シンポジウム  2020.9.8 

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    Event date: 2020.9

    Language:Japanese  

    Venue:Web   Country:Japan  

  118. プログラムコードを触って学ぶ機械学習 Invited

    沓掛健太朗

    第81回応用物理学秋季学術講演会チュートリアル  2020.9.9 

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    Event date: 2020.9

    Language:Japanese  

    Venue:Web   Country:Japan  

  119. 材料プロセスの実験への機械学習の応用と課題 Invited

    沓掛健太朗

    第81回応用物理学秋季学術講演会シンポジウム  2020.9.8 

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    Event date: 2020.9

    Language:Japanese  

    Venue:Web   Country:Japan  

  120. 機械学習を用いたX線回折パターン解析と測定装置への実装 Invited

    沓掛健太朗

    日本学術振興会145委員会第168回研究会  2020.6.26 

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    Event date: 2020.6

    Language:Japanese  

    Venue:Web   Country:Japan  

  121. 機械学習を用いたX線回折パターン解析と測定装置への実装 Invited

    沓掛健太朗

    日本学術振興会145委員会第168回研究会  2020.6.26 

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    Event date: 2020.6

    Language:Japanese  

    Venue:Web   Country:Japan  

  122. 結晶成長のシミュレーションとデータ同化 Invited

    沓掛健太朗

    第7回設計に活かすデータ同化研究会  2020.1.27 

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    Event date: 2020.1

    Language:Japanese  

    Venue:産業技術総合研究所 臨海副都心センター   Country:Japan  

  123. 結晶成長のシミュレーションとデータ同化 Invited

    沓掛健太朗

    第7回設計に活かすデータ同化研究会  2020.1.27 

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    Event date: 2020.1

    Language:Japanese  

    Venue:産業技術総合研究所 臨海副都心センター   Country:Japan  

  124. 数値情報抽出によるコロイド粒子間相互作用の検討

    沓掛健太朗

    第48回結晶成長国内会議(JCCG-48)  2019.10.30 

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    Event date: 2019.10 - 2019.11

    Language:Japanese  

    Venue:大阪大学   Country:Japan  

  125. 機械学習による結晶成長炉内温度の予測

    沓掛健太朗

    第48回結晶成長国内会議(JCCG-48)  2019.10.30 

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    Event date: 2019.10 - 2019.11

    Language:Japanese  

    Venue:大阪大学   Country:Japan  

  126. 数値情報抽出によるコロイド粒子間相互作用の検討

    沓掛健太朗

    第48回結晶成長国内会議(JCCG-48)  2019.10.30 

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    Event date: 2019.10 - 2019.11

    Language:Japanese  

    Venue:大阪大学   Country:Japan  

  127. 機械学習による結晶成長炉内温度の予測

    沓掛健太朗

    第48回結晶成長国内会議(JCCG-48)  2019.10.30 

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    Event date: 2019.10 - 2019.11

    Language:Japanese  

    Venue:大阪大学   Country:Japan  

  128. 機械学習による発光強度プロファイルからの欠陥の電気特性の推定

    沓掛健太朗

    2019年応用物理学会秋季学術講演会  2019.9.21 

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    Event date: 2019.9

    Language:Japanese  

    Venue:北海道大学   Country:Japan  

  129. 放射光X線回折パターンの特徴抽出と空間マッピング(Ⅱ)

    沓掛健太朗

    2019年応用物理学会秋季学術講演会  2019.9.21 

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    Event date: 2019.9

    Language:Japanese  

    Venue:北海道大学   Country:Japan  

  130. 機械学習による発光強度プロファイルからの欠陥の電気特性の推定

    沓掛健太朗

    2019年応用物理学会秋季学術講演会  2019.9.21 

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    Event date: 2019.9

    Language:Japanese  

    Venue:北海道大学   Country:Japan  

  131. 放射光X線回折パターンの特徴抽出と空間マッピング(Ⅱ)

    沓掛健太朗

    2019年応用物理学会秋季学術講演会  2019.9.21 

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    Event date: 2019.9

    Language:Japanese  

    Venue:北海道大学   Country:Japan  

  132. Applications of machine learning to micro beam X-ray diffraction mapping Invited International conference

    Kentaro Kutsukake

    International Young Researchers Workshop on Synchrotron Radiation Science 2019  2019.9.3 

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    Event date: 2019.9

    Language:English  

    Country:Japan  

  133. Applications of machine learning to micro beam X-ray diffraction mapping Invited International conference

    Kentaro Kutsukake

    International Young Researchers Workshop on Synchrotron Radiation Science 2019  2019.9.3 

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    Event date: 2019.9

    Language:English  

    Country:Japan  

  134. "AI vs 人間" 良い結晶を創るのはどっち? Invited

    沓掛健太朗

    第42回 結晶成長討論会  2019.8.30 

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    Event date: 2019.8

    Language:Japanese  

    Venue:箕面観光ホテル   Country:Japan  

  135. "AI vs 人間" 良い結晶を創るのはどっち? Invited

    沓掛健太朗

    第42回 結晶成長討論会  2019.8.30 

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    Event date: 2019.8

    Language:Japanese  

    Venue:箕面観光ホテル   Country:Japan  

  136. 機械学習による適応的な実験条件の取得と材料計測への応用 Invited

    沓掛健太朗

    令和元年度 物質科学研究会&第1回iMATERIA研究会   2019.8.20 

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    Event date: 2019.8

    Language:Japanese  

    Venue:エッサム神田ホール   Country:Japan  

  137. 機械学習による適応的な実験条件の取得と材料計測への応用 Invited

    沓掛健太朗

    令和元年度 物質科学研究会&第1回iMATERIA研究会   2019.8.20 

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    Event date: 2019.8

    Language:Japanese  

    Venue:エッサム神田ホール   Country:Japan  

  138. Application of data science techniques to crystalline silicon research for solar cells Invited International conference

    Kentaro Kutsukake

    29th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes  2019.8.6 

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    Event date: 2019.8

    Language:English  

    Venue:Winter park, Denver, USA   Country:United States  

  139. Application of data science techniques to crystalline silicon research for solar cells Invited International conference

    Kentaro Kutsukake

    29th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes  2019.8.6 

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    Event date: 2019.8

    Language:English  

    Venue:Winter park, Denver, USA   Country:United States  

  140. 結晶成長・結晶評価へのデータ科学活用 Invited

    沓掛健太朗

    第151回結晶工学分科会研究会 いまからはじめるインフォマティクス~チュートリアルから先端事例まで~  2019.6.17 

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    Event date: 2019.6

    Language:Japanese  

    Venue:産総研臨海副都心センター別館   Country:Japan  

  141. 結晶成長・結晶評価へのデータ科学活用 Invited

    沓掛健太朗

    第151回結晶工学分科会研究会 いまからはじめるインフォマティクス~チュートリアルから先端事例まで~  2019.6.17 

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    Event date: 2019.6

    Language:Japanese  

    Venue:産総研臨海副都心センター別館   Country:Japan  

  142. 合同セッション N 「インフォマティクス応用」の開設にあたって

    沓掛健太朗

    2019年応用物学会春季学術講演会  2019.3.9 

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    Event date: 2019.3

    Language:Japanese  

    Venue:東京工業大学大岡山キャンパス   Country:Japan  

  143. 放射光X線回折パターンの特徴抽出と空間マッピング

    沓掛健太朗

    2019年応用物学会春季学術講演会  2019.3.9 

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    Event date: 2019.3

    Language:Japanese  

    Venue:東京工業大学大岡山キャンパス   Country:Japan  

  144. 合同セッション N 「インフォマティクス応用」の開設にあたって

    沓掛健太朗

    2019年応用物学会春季学術講演会  2019.3.9 

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    Event date: 2019.3

    Language:Japanese  

    Venue:東京工業大学大岡山キャンパス   Country:Japan  

  145. 放射光X線回折パターンの特徴抽出と空間マッピング

    沓掛健太朗

    2019年応用物学会春季学術講演会  2019.3.9 

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    Event date: 2019.3

    Language:Japanese  

    Venue:東京工業大学大岡山キャンパス   Country:Japan  

  146. Generation and propagation of dislocations in multicrystalline silicon for solar cells Invited International conference

    Kentaro Kutsukake

    International Symposium on Modeling of Crystal Growth Processes and Devices  2019.2.27 

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    Event date: 2019.2

    Language:English  

    Venue:SSN Research Centre, SSN College of Engineering, Chennai, India   Country:India  

  147. Generation and propagation of dislocations in multicrystalline silicon for solar cells Invited International conference

    Kentaro Kutsukake

    International Symposium on Modeling of Crystal Growth Processes and Devices  2019.2.27 

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    Event date: 2019.2

    Language:English  

    Venue:SSN Research Centre, SSN College of Engineering, Chennai, India   Country:India  

  148. 結晶評価へのデータ科学活用 Invited

    沓掛健太朗

    応用物理学会東海支部 基礎セミナー「結晶成長:原理と成長法、及び、歪・欠陥の評価技術の最前線」  2019.2.5 

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    Event date: 2019.2

    Language:Japanese  

    Venue:名古屋大学ベンチャービジネスラボラトリ   Country:Japan  

  149. 結晶評価へのデータ科学活用 Invited

    沓掛健太朗

    応用物理学会東海支部 基礎セミナー「結晶成長:原理と成長法、及び、歪・欠陥の評価技術の最前線」  2019.2.5 

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    Event date: 2019.2

    Language:Japanese  

    Venue:名古屋大学ベンチャービジネスラボラトリ   Country:Japan  

  150. Generation and propagation of defects in multicrystalline silicon for solar cells Invited

    2018.11.21 

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    Event date: 2018.11

    Language:English  

    Country:Japan  

  151. Generation and propagation of defects in multicrystalline silicon for solar cells Invited

    2018.11.21 

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    Event date: 2018.11

    Language:English  

    Country:Japan  

  152. データ駆動型の結晶成長研究に向けたコロイド粒子の数値情報抽出

    沓掛健太朗

    第47回結晶成長国内会議(JCCG-47)  2018.11.2 

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    Event date: 2018.10 - 2018.11

    Language:Japanese  

    Venue:仙台戦災復興記念館   Country:Japan  

  153. データ科学手法による結晶成長炉内の最適温度測定位置の検討

    沓掛健太朗

    第47回結晶成長国内会議(JCCG-47)  2018.11.2 

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    Event date: 2018.10 - 2018.11

    Language:Japanese  

    Venue:仙台戦災復興記念館   Country:Japan  

  154. データ駆動型の結晶成長研究に向けたコロイド粒子の数値情報抽出

    沓掛健太朗

    第47回結晶成長国内会議(JCCG-47)  2018.11.2 

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    Event date: 2018.10 - 2018.11

    Language:Japanese  

    Venue:仙台戦災復興記念館   Country:Japan  

  155. データ科学手法による結晶成長炉内の最適温度測定位置の検討

    沓掛健太朗

    第47回結晶成長国内会議(JCCG-47)  2018.11.2 

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    Event date: 2018.10 - 2018.11

    Language:Japanese  

    Venue:仙台戦災復興記念館   Country:Japan  

  156. Adaptive mapping for quick material evaluation Invited International conference

    Kentaro Kutsukake

    The 19th KIM-JIM Symposium  2018.10.25 

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    Event date: 2018.10

    Language:English  

    Venue:Daejeon Convention Center (DCC), Daejeon, Korea   Country:Korea, Republic of  

  157. Adaptive mapping for quick material evaluation Invited International conference

    Kentaro Kutsukake

    The 19th KIM-JIM Symposium  2018.10.25 

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    Event date: 2018.10

    Language:English  

    Venue:Daejeon Convention Center (DCC), Daejeon, Korea   Country:Korea, Republic of  

  158. PV研究におけるデータサイエンス活用に向けて Invited

    沓掛健太朗

    JSAP若手チャプター 太陽光エネルギー変換機能材料・デバイス開発研究会 第1回研究会  2018.9.22 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋工業大学   Country:Japan  

  159. PV研究におけるデータサイエンス活用に向けて Invited

    沓掛健太朗

    JSAP若手チャプター 太陽光エネルギー変換機能材料・デバイス開発研究会 第1回研究会  2018.9.22 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋工業大学   Country:Japan  

  160. データ駆動型のコロイド結晶成長に向けた数値情報抽出

    沓掛健太朗

    2018年第79回応用物理学会秋季学術講演会  2018.9.18 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  161. SiC溶液成長における熱流体解析の機械学習を用いたパラメータ影響の可視化

    沓掛健太朗

    2018年第79回応用物理学会秋季学術講演会  2018.9.20 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  162. データ科学的手法を用いた適応的マッピングのμ ビームX 線回折への実装

    沓掛健太朗

    2018年第79回応用物理学会秋季学術講演会  2018.9.19 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  163. GaN結晶の多光子励起PL画像からの転位の3次元配置に関する数値情報抽出

    沓掛健太朗

    2018年第79回応用物理学会秋季学術講演会  2018.9.18 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  164. データ駆動型のコロイド結晶成長に向けた数値情報抽出

    沓掛健太朗

    2018年第79回応用物理学会秋季学術講演会  2018.9.18 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  165. SiC溶液成長における熱流体解析の機械学習を用いたパラメータ影響の可視化

    沓掛健太朗

    2018年第79回応用物理学会秋季学術講演会  2018.9.20 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  166. データ科学的手法を用いた適応的マッピングのμ ビームX 線回折への実装

    沓掛健太朗

    2018年第79回応用物理学会秋季学術講演会  2018.9.19 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  167. GaN結晶の多光子励起PL画像からの転位の3次元配置に関する数値情報抽出

    沓掛健太朗

    2018年第79回応用物理学会秋季学術講演会  2018.9.18 

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    Event date: 2018.9

    Language:Japanese  

    Venue:名古屋国際会議場   Country:Japan  

  168. AIとエネルギー材料 ~実演で学ぶAIのしくみ~ Invited

    沓掛健太朗

    平成30年みやぎ県民大学「地球にやさしいエネルギーと環境・省エネルギー技術 ~半導体・超伝導・AI・植物の品種改良~」  2018.8.29 

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    Event date: 2018.8

    Language:Japanese  

    Venue:東北大学金属材料研究所   Country:Japan  

  169. AIとエネルギー材料 ~実演で学ぶAIのしくみ~ Invited

    沓掛健太朗

    平成30年みやぎ県民大学「地球にやさしいエネルギーと環境・省エネルギー技術 ~半導体・超伝導・AI・植物の品種改良~」  2018.8.29 

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    Event date: 2018.8

    Language:Japanese  

    Venue:東北大学金属材料研究所   Country:Japan  

  170. 物理計測の適応的マッピング Invited

    沓掛健太朗

    インフォマティクスと連携したモノづくりと計測技術 

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    Event date: 2018.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学東山キャンパスES総合館ESホール   Country:Japan  

  171. データ科学を駆使した適応的マッピング測定 Invited

    沓掛健太朗

    日本学術振興会「結晶加工と評価技術」第145委員会 第156回研究会 

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    Event date: 2017.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:明治大学 駿河台キャンパス グローバルフロント   Country:Japan  

  172. データ科学的手法による効率的なマッピング(3):測定点移動距離の検討

    沓掛健太朗, 菊地亮太, 大野裕, 下山幸治

    第78回応用物理学会秋季学術講演会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡国際会議場   Country:Japan  

  173. 太陽電池用シリコンのキャスト成長における欠陥制御

    学振175委員会 第6回次世代シリコン太陽電池分科会研究会  2017 

  174. データ科学的手法を用いた効率的なマッピングの提案

    学振第175委員会 第14回「次世代の太陽光発電システム」シンポジウム  2017 

  175. 太陽電池用のシリコン材料の開発

    東北大学多元物質科学研究所 若手研究者交流講演会  2017 

  176. 機械学習による結晶成長炉内温度のリアルタイム将来予測

    沓掛健太朗

    第67回応用物理学会春季学術講演会  2020.3.14 

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    Country:Japan  

  177. 急速アニールを利用した絶縁体上SiGe薄膜の作製

    沓掛健太朗

    第63回応用物理学学会学術講演会  2002 

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    Presentation type:Poster presentation  

  178. Toward realization of ideal multicrystalline Si with controlled grain orientations and grain boundary configuration for photovoltaic applications

    Kentaro Kutsukake

    The16th American Conference on Crystal Growth and Epitaxy  2005 

  179. FZ法による粒界構造を制御したSiバルク多結晶の成長と評価

    沓掛健太朗

    第66回応用物理学会学術講演会  2005 

  180. ランダム粒界を有する種結晶を利用した粒界性格制御Siバルク多結晶成長

    沓掛健太朗

    第66回応用物理学会学術講演会  2005 

  181. 空間分解ラマン分光によるSGOI上Siの歪み分布の解析

    沓掛健太朗

    第51回応用物理学関係連合講演会  2004 

  182. Growth of SiGe-on-insulator and its application as a substrate for epitaxy of strained Si layer

    Kentaro Kutsukake

    14th International Conference on Crystal Growth and 12th International Conference on  2004 

  183. 太陽電池用<100>配向多結晶Siの成長

    沓掛健太朗

    第65回応用物理学学会学術講演会  2004 

  184. A comparative study of strain field in strained Si on SiGe-on-insulator and SiGe virtual substrates

    Kentaro Kutsukake

    The first International SiGe: Materials, Processing, and Devices Symposium in the Fall 2004 Electrochemical Society Conference  2004 

  185. 絶縁体上薄膜SiGe結晶性の熱処理前Ge成長温度および熱処理温度依存性

    沓掛健太朗

    第50回応用物理学関係連合講演会  2003 

  186. Impact of the annealing temperature on the homogeneity of SiGe-on-insulator

    Kentaro Kutsukake

    International Conference on SiGe(C) Epitaxy and Heterostructures  2003 

  187. Fabrication SiGe-on-insulator by rapid thermal annealing of Ge thin film on Si-on-insulator substrate

    Kentaro Kutsukake

    the First International SiGe Technology and Device Meeting  2003 

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  188. 空間分解ラマン分光によるSGOI中HF欠陥の解析

    沓掛健太朗

    第64回応用物理学学会学術講演会  2003 

  189. アモルファス層の再結晶化による絶縁体上SiGe仮想基板の作成

    沓掛健太朗

    第49回応用物理学関係連合講演会  2002 

  190. Fabrication of SiGe substrate with uniform composition and its application to strain-controlled epitaxy for group-IV heterostructures

    Kentaro Kutsukake

    the second international workshop on new group-IV  2002 

  191. Growth of multicrystalline Si using a seed crystal with artificially controlled grain boundary configuration; Toward improvement of the conversion efficiency of crystalline Si solar cells

    Kentaro Kutsukake

    20th European Photovoltaic Solar Energy Conference and Exhibition  2005 

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    Presentation type:Poster presentation  

  192. 太陽電池用シリコン結晶の結晶育成仮定における転位発生メカニズム

    沓掛健太朗

    大阪大学産業科学研究所 産業科学ナノテクノロジーセンター 「第3回若手セミナー」  2012 

  193. Dislocations in multicrystalline silicon for solar cells

    Kentaro Kutsukake

    1st IMR & KMU Joint Workshop  2012 

  194. シリコン結晶中の対応粒界の粒界転位構造と結晶成長に伴う変化

    沓掛健太朗

    日本物理学会 第67回年次大会  2012 

  195. Study of crystal growth of super high-quality silicon crystal with grain boundaries with controlled configurations for solar cells

    Kentaro Kutsukake

    2012 

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    Presentation type:Poster presentation  

  196. 太陽電池用超高品質シリコン結晶を目指した機能性結晶粒界の作製と制御

    沓掛健太朗

    第9回「次世代の太陽光発電システム」シンポジウム  2012 

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  197. Growth and characterization of grain boundaries artificially formed in Si crystal by using CZ, FZ and Bridgman methods

    Kentaro Kutsukake

    International Conference on Extended Defects in Semiconductors 2012 (EDS-2012)  2012 

  198. 機能性結晶粒界による太陽電池用超高品質シリコン結晶の実現

    沓掛健太朗

    第5回半導体ワークショップ  2012 

  199. 機能性結晶粒界によるモノキャストSi成長における多結晶化の抑制

    沓掛健太朗

    2012秋季 第73回 応用物理学学術講演会  2012 

  200. シリコン多結晶インゴット成長過程における転位発生についてのレビューと考察

    沓掛健太朗

    2012秋季 第73回 応用物理学学術講演会  2012 

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  201. Quantitative analysis of carrier recombination property at grain boundaries in multicrystalline silicon using micro-image of electroluminescence

    Kentaro Kutsukake

    27th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC27)  2012 

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  202. A new mono-cast Si technique using functional grain boundaries

    Kentaro Kutsukake

    The 6th International workshop on Crystalline Silicon for Solar Cells (CSSC6)  2012 

  203. Grain boundary engineering of silicon crystal for solar cells

    Kentaro Kutsukake

    Summit of Materials Science (SMS2012)  2012 

  204. 機能性結晶粒界による超高品質シリコン結晶の実現

    沓掛健太朗

    PV Japan2012  2012 

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  205. 太陽電池用シリコンバルク多結晶の2次元成長過程における欠陥発生機構

    沓掛健太朗

    第2回半導体デバイス若手ワークショップ  2011 

  206. バルク多結晶シリコンの2次元成長過程における転位発生機構

    沓掛健太朗

    第58回応用物理学関係連合講演会  2011 

  207. 多結晶シリコンのインゴット成長過程における転位形成機構

    沓掛健太朗

    第8回「次世代の太陽光発電」シンポジウム  2011 

  208. Generation mechanism of dislocations in multicrystalline Si during 2D growth

    Kentaro Kutsukake

    26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC)  2011 

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  209. シリコン結晶中の人工粒界の成長

    沓掛健太朗

    第3回半導体若手ワークショップ  2011 

  210. STUDY OF DISLOCATION GENERATION DURING TWO-DIMMENSIONAL GROWTH OF MULTICRYSTALLINE SILICON

    Kentaro Kutsukake

    21th International Photovoltaic Science and Engineering Conference  2011 

  211. STUDY OF INCORPORATION OF OXYGEN AND CARBON

    Kentaro Kutsukake

    21th International Photovoltaic Science and Engineering Conference  2011 

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  212. 多結晶シリコン中の酸素・炭素不純物の結晶育成方向に対する分布の解析

    沓掛健太朗

    応用物理学会 結晶工学分科会主催2011年・年末講演会  2011 

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  213. シリコン結晶中の人工粒界の成長 -CZ, FZ, ブリッジマン成長での比較-

    沓掛健太朗

    応用物理学会 結晶工学分科会主催2011年・年末講演会  2011 

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  214. 材料科学からの結晶シリコン太陽電池の高効率化へのアプローチ Invited

    沓掛健太朗

    平成21年度日本金属学会・日本鉄鋼協会東海支部学術討論会  2010.2 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋   Country:Japan  

  215. Formation mechanism of twin boundaries in silicon multicrystals during crystal growth

    Kentaro Kutsukake

    35th IEEE Photovoltaics specialists conference  2010 

  216. Comprehensive study of defects in Si Multicrystals Toward High-Efficiency Solar Cells Invited International conference

    Kentaro Kutsukake

    18th International Photovoltaic Science and Engineering Conference and Exhibition  2009.1 

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    Venue:Kolkata   Country:India  

  217. Siバルク多結晶中の亜粒界の電気的特性評価

    沓掛健太朗

    第55回応用物理学関係連合講演会  2008 

  218. Comprehensive research of sub-grain boundaries Invited International conference

    Kentaro Kutsukake

    The 4th Asian Conference on Crystal Growth and Crystal Technology  2008.5 

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    Venue:Sendai   Country:Japan  

  219. On the generation mechanism of sub-grain boundaries during directional growth of Si bulk multicrystal

    Kentaro Kutsukake

    23rd European Photovoltaic Solar Energy Conference and Exhibition  2008 

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  220. 太陽電池の高効率化に向けたSiバルク多結晶の組織制御と学振161委員会トピックス

    沓掛健太朗

    第54回応用物理学関係連合講演会  2007 

  221. 多孔質Si基板上へのSiGe薄膜成長による歪み制御

    沓掛健太朗

    第54回応用物理学関係連合講演会  2007 

  222. バルク多結晶Si成長過程における亜粒界発生に対する多結晶組織の影響

    沓掛健太朗

    第54回応用物理学関係連合講演会  2007 

  223. バルク多結晶シリコン中の亜粒界密度の定量法と少数キャリア拡散長への影響

    沓掛健太朗

    第54回応用物理学関係連合講演会  2007 

  224. 結晶成長過程における Si バルク多結晶中の亜粒界発生メカニズム

    沓掛健太朗

    日本金属学会2007年春季大会  2007 

  225. X線回折法を用いたSiバルク多結晶の評価技術の向上

    沓掛健太朗

    第68回応用物理学会学術講演会  2007 

  226. Si融液からのLPE成長法によるシリコン薄膜の成長

    沓掛健太朗

    第68回応用物理学会学術講演会  2007 

  227. Structural modification in multicrystalline Si during directional solidification revealed by spatially resolved X-ray rocking curve analysis

    Kentaro Kutsukake

    22nd European Photovoltaic Solar Energy Conference and Exhibition  2007 

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  228. A new technique measuring sub-grain boundary density and its influence on minority carrier diffusion length in bulk multicrystalline silicon

    Kentaro Kutsukake

    22nd European Photovoltaic Solar Energy Conference and Exhibition  2007 

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  229. Quantitative analysis of sub-grain boundaries in bulk multicrystalline silicon using spatially resolved x-ray diffraction

    Kentaro Kutsukake

    12th International Conference on Defects-Recognition, Imaging & Physics in Semiconductors  2007 

  230. Growth of crystalline Si film by using liquid phase epitaxy from Si pure melt for solar cell applications

    Kentaro Kutsukake

    17th International Photovoltaic Science and Engineering Conference  2007 

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  231. SiGeバルク基板上への成長による歪みSi薄膜の構造ゆらぎの抑制

    沓掛健太朗

    第53回応用物理学関係連合講演会  2006 

  232. FZ法により成長したSiバルク結晶中S5粒界の構造変化と電気的特性

    沓掛健太朗

    第53回応用物理学関係連合講演会  2006 

  233. Spontaneous modification of grain boundary configuration and its application for realization of bulk multicrystalline Si with electrically inactive grain boundaries

    Kentaro Kutsukake

    IEEE 4th World Conference on Photovoltaic Energy Conversion  2006 

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  234. FZ法により成長したSiバルク結晶中∑5粒界の構造変化と電気的特性(2)

    沓掛健太朗

    第67回応用物理学会学術講演会  2006 

  235. Siバルク多結晶中の亜粒界発生メカニズム

    沓掛健太朗

    第67回応用物理学会学術講演会  2006 

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  236. キャスト成長過程におけるSiバルク多結晶の粒界構造変化

    沓掛健太朗

    第67回応用物理学会学術講演会  2006 

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  237. FZ法により成長したSiバルク結晶中∑5粒界の構造変化と電気的特性

    沓掛健太朗

    第138 回日本金属学会秋期大会  2006 

  238. 太陽電池の高効率化に向けたSiバルク多結晶の組織制御

    沓掛健太朗

    日本セラミックス協会第19回秋季シンポジウム  2006 

  239. Electrical activities of S5 grain boundaries in bulk multiclystalline Si grown by Bridgman method with configurationally controlled seed crystals

    Kentaro Kutsukake

    21st European Photovoltaic Solar Energy Conference and Exhibition  2006 

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  240. シリコン多結晶のΣ5粒界の電気的特性

    沓掛健太朗

    第52回応用物理学関係連合講演会  2005 

  241. 機能性結晶粒界を利用したモノライクSiのインゴット成長

    沓掛健太朗

    2013秋季東北大学金属材料研究所所内講演会  2013 

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  242. AIを活用した材料プロセス開発 -半導体結晶成長を中心に- Invited

    沓掛健太朗

    第2回『生産現場におけるプロセス・インフォマティクス(PI)によるものづくり革新』研究会  2024.12.20  (公財)科学技術交流財団

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:産業技術総合研究所 中央事業所 東地区   Country:Japan  

  243. 半導体材料・デバイス開発へのインフォマティクス応用 Invited

    沓掛健太朗

    第11回電子光技術 /GaN–OIL合同シンポジウム  2024.12.19  国立研究開発法人産業技術総合研究所 電子光基礎技術研究部門

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:秋葉原UDXカンファレンス   Country:Japan  

  244. 半導体成膜における実践的なベイズ最適化 Invited

    沓掛健太朗

    第34回日本MRS年次大会  2024.12.18  日本MRS

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    Venue:横浜市開港記念会館   Country:Japan  

  245. マテリアルズ・プロセスインフォマティクスと水素貯蔵材料開発への応用 Invited

    沓掛健太朗

    日本MRS水素科学技術連携研究会 第14回トピックス研究会 ~物理学分科会~   2024.7.29  Hydrogenomics

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    Venue:オンライン開催   Country:Japan  

  246. 太陽電池用のシリコン材料の開発

    沓掛健太朗

    東北大学多元物質科学研究所 若手研究者交流講演会  2017 

  247. 太陽電池用シリコンのキャスト成長における欠陥制御

    沓掛健太朗

    学振175委員会 第6回次世代シリコン太陽電池分科会研究会  2017 

  248. データ科学的手法による効率的なマッピングの検討(2)

    沓掛健太朗

    第64回 応用物理学会春季学術講演会  2017 

  249. データ科学的手法を用いた効率的なマッピングの提案

    沓掛健太朗

    学振第175委員会 第14回「次世代の太陽光発電システム」シンポジウム  2017 

  250. シリコン結晶でどこまで行けるのか?可能性と課題

    沓掛健太朗

    次世代太陽電池セミナ-(仮称)準備意見交換会  2016 

  251. イントロダクトリートーク ~発光イメージングから見えるもの~

    沓掛健太朗

    第63回応用物理学会春季学術講演会  2016 

  252. Luminescence imaging through a spatially-resolved camera for defect characterization in silicon crystals

    Kentaro Kutsukake

    Summit of Materials Science (SMS2016) 100th Anniversary of Institute for Materials Research(Tohoku Univ. IMR)  2016 

  253. Grain boundaries in silicon crystals: Crystallographic interaction and dislocation generation during crystal growth Invited International conference

    Kentaro Kutsukake

    The 18th International Conference on Crystal Growth and Epitaxy  2016.8 

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    Venue:Nagoya   Country:Japan  

  254. Influence of grain boundaries on stress concentration in multicrystalline Si

    Kentaro Kutsukake

    The 18th International Conference on Crystal Growth and Epitaxy  2016 

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  255. 機能性結晶粒界による超高品質シリコン結晶の実現

    沓掛健太朗

    さきがけ「太陽光と光電変換機能」領域公開シンポジウム~第3回研究成果報告会~ 融合から生まれる新技術・新材料  2015 

  256. イントロダクトリートーク ~結晶成長と結晶評価技術の重要性~

    沓掛健太朗

    第62回応用物理学会春季学術講演会  2015 

  257. 顕微PLイメージング法によるシリコン結晶中粒界でのキャリア再結合速度の定量評価

    沓掛健太朗

    日本物理学会第70回年次大会  2015 

  258. Growth and characterization of silicon ingots for solar cells: conventional, mono-like and high-performance multicrystalline silicon Invited International conference

    Kentaro Kutsukake

    The 5th Asia-Africa Sustanable Energy Forum  2015.5 

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    Venue:Tsukuba   Country:Japan  

  259. 顕微PLイメージングによるシリコン結晶中の粒界特性評価

    沓掛健太朗

    第12回 「次世代の太陽光発電システム」シンポジウム  2015 

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  260. Defect engineering of multicrystalline and mono-like silicon for solar cells: Characterization and control of grain boundaries and dislocations Invited

    Kentaro Kutsukake

    Workshop on Crystalline Silicon Solar Cells and Modules:  2015.6 

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    Venue:Keystone   Country:United States  

  261. 東北大学 金属材料研究所 先端エネルギー材料理工共創研究センターの太陽電池研究

    沓掛健太朗

    PVJapan2015  2015 

  262. キャストSiはどこまでCZ-Siに近づけるか? ―粒界と転位の影響―

    沓掛健太朗

    第76回応用物理学会秋季学術講演会  2015 

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  263. Quantitative analysis of electrical activity of grain boundaries through high spatial resolution photoluminescence imaging

    Kentaro Kutsukake

    25th International Photovoltaic Science & Engineering Conference  2015 

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  264. Electrical properties of defects in multicrystalline silicon for solar cells Invited

    Kentaro Kutsukake

    11th China SoG Silicon and PV Power Conference  2015.11 

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    Venue:Hangzhou   Country:China  

  265. 顕微発光イメージングで見る半導体結晶中欠陥の電気特性 Invited

    沓掛健太朗

    山梨大学第52回サイエンスカフェ  2015.12 

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    Venue:山梨   Country:Japan  

  266. 太陽電池用モノライクSiの結晶粒界エンジニアリング

    沓掛健太朗

    東北大学研究所連携プロジェクト成果報告会  2014 

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  267. 太陽電池用シリコンの結晶評価:モノライク vs HP多結晶

    沓掛健太朗

    第61回応用物理学春季学術講演会  2014 

  268. 太陽電池用シリコン結晶の材料研究 Invited

    沓掛健太朗

    平成26年度資源素材学会春季大会  2014.3 

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    Venue:東京   Country:Japan  

  269. Crystal growth of mono-like silicon ingot using functional grain boundaries

    Kentaro Kutsukake

    E-MRS 2014 Spring meeting  2014 

  270. 太陽電池用シリコンインゴットの比較研究:モノライクvs 微細粒多結晶

    沓掛健太朗

    東北大学金属材料研究所第127回講演会  2014 

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  271. 太陽電池用シリコン結晶の比較研究:モノライク vs HP多結晶

    沓掛健太朗

    日本学術振興会 産学協力研究委員会 次世代の太陽光発電システム第175委員会 第11回「次世代の太陽光発電システム」シンポジウム  2014 

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  272. Growth of mono-like silicon ingots using functionnal grain boundaries for solar cells

    Kentaro Kutsukake

    2014 

  273. Control of Grain Boundary Propagation in Mono-Like Si: Utilization of Functional Grain Boundaries

    Kentaro Kutsukake

    2014 

  274. Utilization of functional grain boundaryies for suppression of multi-crystallizartion of mono-like Si Invited International conference

    Kentaro Kutsukake

    10th China SoG Silicon and PV Power Conference (CSPV10)  2014.11 

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    Venue:Nangtong   Country:China  

  275. Characterization of silicon ingots: mono-like vs. HP multicrystalline

    Kentaro Kutsukake

    6th World Conference on Photovoltaic Energy Conversion  2014 

  276. Tutorial: Growth and characterization of silicon crystals for solar cells Invited International conference

    Kentaro Kutsukake

    6th World Conference on Photovoltaic Energy Conversion  2014.11 

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    Venue:Kyoto   Country:Japan  

  277. 半導体中キャリアの3次元分布計算とELイメージへの応用研究

    沓掛健太朗

    東北大学研究所連携プロジェクト成果報告会  2013 

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  278. Grain boundary engineering for mono-like Si for solar cell applications

    Kentaro Kutsukake

    2nd IMR-KMU Joint Workshop on the Crystal Growth and Characterization  2013 

  279. 顕微ELイメージングによる多結晶Si中粒界の電気的特性の定量評価

    沓掛健太朗

    2013年第60回応用物理学会春季学術講演会  2013 

  280. 機能性結晶粒界によるモノライクSiの多結晶化の抑制

    沓掛健太朗

    第10回「次世代の太陽光発電システム」シンポジウム  2013 

  281. Grain boundary engineering for mono-like Si Invited International conference

    Kentaro Kutsukake

    IEEE 39th Photovoltaic Specialists Conference  2013.6 

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    Venue:Tampa   Country:United States  

  282. 機能性結晶粒界による超高品質シリコン結晶の実現 ブース展示

    沓掛健太朗

    PVJAPAN2013  2013 

  283. 太陽電池用モノライクSiの現状と課題 ~擬似単結晶・作製法・特性・課題・今後を詳解~

    沓掛健太朗

    Electronic Journal 第1807回Technical Seminar  2013 

  284. 機能性粒界を利用した70kgモノライクSiインゴットの成長

    沓掛健太朗

    2013年第74回応用物理学会秋季学術講演会  2013 

  285. Characterization and simulation of electrical property of grain boundaries in multicrystalline silicon by electroluminescence imaging and finite element method

    Kentaro Kutsukake

    28th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC28)  2013 

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  286. Suppression of multi-crystallization of mono-like Si by functional grain boundaries

    Kentaro Kutsukake

    7th International Workshop on Crystalline Silicon Solar Cells (CSSC7)  2013 

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  287. 太陽電池用モノライクSi結晶の課題と展望 Invited

    沓掛健太朗

    第6回つくばグリーンイノベーションフォーラム  2013.12 

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    Venue:つくば   Country:Japan  

  288. Suppression of multi-crystallization of mono-like Si by functional grain boundaries

    Kentaro Kutsukake

    23rd Photovoltaic science and engineering conference (PVSEC23)  2013 

  289. 高効率シリコン太陽電池に向けた機能性粒界の作製と制御 Invited

    沓掛健太朗

    2013年度東北大学金属材料研究所ワークショップ「格子欠陥が挑戦する新エネルギー・環境材料開発」  2013.11 

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    Venue:仙台   Country:Japan  

  290. Growth of mono-like silicon using functional grain boundaries

    Kentaro Kutsukake

    KINKEN WAKATE2013 10th International Science Scool for Young Scientists and Students  2013 

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  291. Applications of Machine Learning in the field of Crystal Growth Invited International conference

    Kentaro Kutsukake

    International Conference on Sustainable Materials and Advances in Regenerative Technologies  2025.1.31 

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    Venue:Sona College of Technology, Salem   Country:India  

  292. 機械学習による結晶成長炉内温度のリアルタイム将来予測

    沓掛健太朗

    第67回応用物理学会春季学術講演会  2020.3.14 

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    Language:Japanese  

    Country:Japan  

  293. 物理計測の適応的マッピング Invited

    沓掛健太朗

    日本鉄鋼協会東海支部・日本金属学会東海支部学術討論会  2018.1 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋   Country:Japan  

  294. データ科学を活用した材料創製・材料評価に向けて Invited

    沓掛健太朗

    日本金属学会2018年春季講演大会  2018.3 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:習志野   Country:Japan  

  295. 物理計測の適応的マッピング Invited

    沓掛健太朗

    日本学術振興会第151委員会平成30年度第2回研究会  2018.6 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京   Country:Japan  

  296. 機械学習を用いたSiC研削加工条件探索 Invited

    沓掛健太朗

    結晶工学分科会第154回研究会  2021.4 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン開催   Country:Japan  

  297. Process Informatics for Si and SiC Wafers Using AI/ML Invited International conference

    Kentaro Kutsukake

    2022 International Conference on Electronics Packaging (ICEP 2022)  2022.5 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Online  

  298. Machine learning study for Czochralski growth of Si Invited International conference

    Kentaro Kutsukake

    International Conference on Sustainable Materials and Technologies for Energy and Bio Applications  2022.7 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Online  

  299. Materials Informatics for the semiconductor crystal growth Invited International conference

    Kentaro Kutsukake

    19th International Conference on Defects-Recognition, Imaging and Physics in Semiconductors  2022.8 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Online  

  300. Materials process informatics for crystal growth Invited International conference

    Kentaro Kutsukake

    IIndInternational Conference on Emerging Nanomaterials in Chemical, Biological and Engineering Applications (INBCEA - 2025)  2025.3.13 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Online   Country:India  

  301. 半導体熱処理条件の最適化における既存条件を考慮した目的関数の検討

    沓掛健太朗、笠原亮太郎、原田俊太、宇治原徹、関翔太、高石将暉、永井勇太

    第72回応用物理学会春季学術講演会  2025.3.17  公益社団法人 応用物理学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京理科大学野田キャンパス、オンライン開催   Country:Japan  

  302. インフォマティクスによる結晶工学シミュレーションの加速 Invited

    沓掛健太朗

    第29回結晶工学セミナー,第9回インフォマティクス応用研究会  2025.2.20  公益社団法人応用物理学会 結晶工学分科会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:上智大四谷キャンパス、オンライン開催   Country:Japan  

  303. 半導体結晶プロセス開発へのインフォマティクス応用 Invited

    沓掛健太朗

    第3回プロセスインフォマティクスセミナー  2025.2.19  非営利型一般社団法人 製造業AI普及協会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン開催   Country:Japan  

  304. Applications of Machine Learning in the field of Crystal Growth Invited International conference

    Kentaro Kutsukake

    International Conference on Hierarchally Structured Materials (ICHSM- 2025)  2025.2.7 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:BLOCK V–GALLERY HALL   Country:India  

  305. 急速アニールを利用した絶縁体上SiGe薄膜の作製

    沓掛健太朗

    第63回応用物理学学会学術講演会  2002 

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  306. Fabrication of SiGe substrate with uniform composition and its application to strain-controlled epitaxy for group-IV heterostructures

    Kentaro Kutsukake

    the second international workshop on new group-IV  2002 

  307. アモルファス層の再結晶化による絶縁体上SiGe仮想基板の作成

    沓掛健太朗

    第49回応用物理学関係連合講演会  2002 

  308. 機能性結晶粒界による超高品質シリコン結晶の実現

    沓掛健太朗

    PV Japan2012  2012 

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    Presentation type:Poster presentation  

  309. 太陽電池用シリコンバルク多結晶の2次元成長過程における欠陥発生機構

    沓掛健太朗

    第2回半導体デバイス若手ワークショップ  2011 

  310. バルク多結晶シリコンの2次元成長過程における転位発生機構

    沓掛健太朗

    第58回応用物理学関係連合講演会  2011 

  311. 多結晶シリコンのインゴット成長過程における転位形成機構

    沓掛健太朗

    第8回「次世代の太陽光発電」シンポジウム  2011 

  312. Generation mechanism of dislocations in multicrystalline Si during 2D growth

    Kentaro Kutsukake

    26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC)  2011 

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    Presentation type:Poster presentation  

  313. シリコン結晶中の人工粒界の成長

    沓掛健太朗

    第3回半導体若手ワークショップ  2011 

  314. STUDY OF DISLOCATION GENERATION DURING TWO-DIMMENSIONAL GROWTH OF MULTICRYSTALLINE SILICON

    Kentaro Kutsukake

    21th International Photovoltaic Science and Engineering Conference  2011 

  315. STUDY OF INCORPORATION OF OXYGEN AND CARBON

    Kentaro Kutsukake

    21th International Photovoltaic Science and Engineering Conference  2011 

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    Presentation type:Poster presentation  

  316. 多結晶シリコン中の酸素・炭素不純物の結晶育成方向に対する分布の解析

    沓掛健太朗

    応用物理学会 結晶工学分科会主催2011年・年末講演会  2011 

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  317. シリコン結晶中の人工粒界の成長 -CZ, FZ, ブリッジマン成長での比較-

    沓掛健太朗

    応用物理学会 結晶工学分科会主催2011年・年末講演会  2011 

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    Presentation type:Poster presentation  

  318. 材料科学からの結晶シリコン太陽電池の高効率化へのアプローチ Invited

    沓掛健太朗

    平成21年度日本金属学会・日本鉄鋼協会東海支部学術討論会  2010.2 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋   Country:Japan  

  319. Formation mechanism of twin boundaries in silicon multicrystals during crystal growth

    Kentaro Kutsukake

    35th IEEE Photovoltaics specialists conference  2010 

  320. Comprehensive study of defects in Si Multicrystals Toward High-Efficiency Solar Cells Invited International conference

    Kentaro Kutsukake

    18th International Photovoltaic Science and Engineering Conference and Exhibition  2009.1 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Kolkata   Country:India  

  321. Siバルク多結晶中の亜粒界の電気的特性評価

    沓掛健太朗

    第55回応用物理学関係連合講演会  2008 

  322. Comprehensive research of sub-grain boundaries Invited International conference

    Kentaro Kutsukake

    The 4th Asian Conference on Crystal Growth and Crystal Technology  2008.5 

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    Venue:Sendai   Country:Japan  

  323. On the generation mechanism of sub-grain boundaries during directional growth of Si bulk multicrystal

    Kentaro Kutsukake

    23rd European Photovoltaic Solar Energy Conference and Exhibition  2008 

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    Presentation type:Poster presentation  

  324. 太陽電池の高効率化に向けたSiバルク多結晶の組織制御と学振161委員会トピックス

    沓掛健太朗

    第54回応用物理学関係連合講演会  2007 

  325. 多孔質Si基板上へのSiGe薄膜成長による歪み制御

    沓掛健太朗

    第54回応用物理学関係連合講演会  2007 

  326. バルク多結晶Si成長過程における亜粒界発生に対する多結晶組織の影響

    沓掛健太朗

    第54回応用物理学関係連合講演会  2007 

  327. バルク多結晶シリコン中の亜粒界密度の定量法と少数キャリア拡散長への影響

    沓掛健太朗

    第54回応用物理学関係連合講演会  2007 

  328. 結晶成長過程における Si バルク多結晶中の亜粒界発生メカニズム

    沓掛健太朗

    日本金属学会2007年春季大会  2007 

  329. X線回折法を用いたSiバルク多結晶の評価技術の向上

    沓掛健太朗

    第68回応用物理学会学術講演会  2007 

  330. Si融液からのLPE成長法によるシリコン薄膜の成長

    沓掛健太朗

    第68回応用物理学会学術講演会  2007 

  331. Structural modification in multicrystalline Si during directional solidification revealed by spatially resolved X-ray rocking curve analysis

    Kentaro Kutsukake

    22nd European Photovoltaic Solar Energy Conference and Exhibition  2007 

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  332. A new technique measuring sub-grain boundary density and its influence on minority carrier diffusion length in bulk multicrystalline silicon

    Kentaro Kutsukake

    22nd European Photovoltaic Solar Energy Conference and Exhibition  2007 

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  333. Quantitative analysis of sub-grain boundaries in bulk multicrystalline silicon using spatially resolved x-ray diffraction

    Kentaro Kutsukake

    12th International Conference on Defects-Recognition, Imaging & Physics in Semiconductors  2007 

  334. Growth of crystalline Si film by using liquid phase epitaxy from Si pure melt for solar cell applications

    Kentaro Kutsukake

    17th International Photovoltaic Science and Engineering Conference  2007 

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  335. SiGeバルク基板上への成長による歪みSi薄膜の構造ゆらぎの抑制

    沓掛健太朗

    第53回応用物理学関係連合講演会  2006 

  336. FZ法により成長したSiバルク結晶中S5粒界の構造変化と電気的特性

    沓掛健太朗

    第53回応用物理学関係連合講演会  2006 

  337. Spontaneous modification of grain boundary configuration and its application for realization of bulk multicrystalline Si with electrically inactive grain boundaries

    Kentaro Kutsukake

    IEEE 4th World Conference on Photovoltaic Energy Conversion  2006 

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  338. FZ法により成長したSiバルク結晶中∑5粒界の構造変化と電気的特性(2)

    沓掛健太朗

    第67回応用物理学会学術講演会  2006 

  339. Siバルク多結晶中の亜粒界発生メカニズム

    沓掛健太朗

    第67回応用物理学会学術講演会  2006 

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  340. キャスト成長過程におけるSiバルク多結晶の粒界構造変化

    沓掛健太朗

    第67回応用物理学会学術講演会  2006 

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  341. FZ法により成長したSiバルク結晶中∑5粒界の構造変化と電気的特性

    沓掛健太朗

    第138 回日本金属学会秋期大会  2006 

  342. 太陽電池の高効率化に向けたSiバルク多結晶の組織制御

    沓掛健太朗

    日本セラミックス協会第19回秋季シンポジウム  2006 

  343. Electrical activities of S5 grain boundaries in bulk multiclystalline Si grown by Bridgman method with configurationally controlled seed crystals

    Kentaro Kutsukake

    21st European Photovoltaic Solar Energy Conference and Exhibition  2006 

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  344. シリコン多結晶のΣ5粒界の電気的特性

    沓掛健太朗

    第52回応用物理学関係連合講演会  2005 

  345. Growth of multicrystalline Si using a seed crystal with artificially controlled grain boundary configuration; Toward improvement of the conversion efficiency of crystalline Si solar cells

    Kentaro Kutsukake

    20th European Photovoltaic Solar Energy Conference and Exhibition  2005 

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  346. Toward realization of ideal multicrystalline Si with controlled grain orientations and grain boundary configuration for photovoltaic applications

    Kentaro Kutsukake

    The16th American Conference on Crystal Growth and Epitaxy  2005 

  347. FZ法による粒界構造を制御したSiバルク多結晶の成長と評価

    沓掛健太朗

    第66回応用物理学会学術講演会  2005 

  348. ランダム粒界を有する種結晶を利用した粒界性格制御Siバルク多結晶成長

    沓掛健太朗

    第66回応用物理学会学術講演会  2005 

  349. 空間分解ラマン分光によるSGOI上Siの歪み分布の解析

    沓掛健太朗

    第51回応用物理学関係連合講演会  2004 

  350. Growth of SiGe-on-insulator and its application as a substrate for epitaxy of strained Si layer

    Kentaro Kutsukake

    14th International Conference on Crystal Growth and 12th International Conference on  2004 

  351. 太陽電池用<100>配向多結晶Siの成長

    沓掛健太朗

    第65回応用物理学学会学術講演会  2004 

  352. A comparative study of strain field in strained Si on SiGe-on-insulator and SiGe virtual substrates

    Kentaro Kutsukake

    The first International SiGe: Materials, Processing, and Devices Symposium in the Fall 2004 Electrochemical Society Conference  2004 

  353. 絶縁体上薄膜SiGe結晶性の熱処理前Ge成長温度および熱処理温度依存性

    沓掛健太朗

    第50回応用物理学関係連合講演会  2003 

  354. Impact of the annealing temperature on the homogeneity of SiGe-on-insulator

    Kentaro Kutsukake

    International Conference on SiGe(C) Epitaxy and Heterostructures  2003 

  355. Fabrication SiGe-on-insulator by rapid thermal annealing of Ge thin film on Si-on-insulator substrate

    Kentaro Kutsukake

    the First International SiGe Technology and Device Meeting  2003 

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  356. 空間分解ラマン分光によるSGOI中HF欠陥の解析

    沓掛健太朗

    第64回応用物理学学会学術講演会  2003 

  357. Grain boundary engineering of silicon crystal for solar cells

    Kentaro Kutsukake

    Summit of Materials Science (SMS2012)  2012 

  358. Influence of grain boundaries on stress concentration in multicrystalline Si

    Kentaro Kutsukake

    The 18th International Conference on Crystal Growth and Epitaxy  2016 

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    Presentation type:Poster presentation  

  359. 機能性結晶粒界による超高品質シリコン結晶の実現

    沓掛健太朗

    さきがけ「太陽光と光電変換機能」領域公開シンポジウム~第3回研究成果報告会~ 融合から生まれる新技術・新材料  2015 

  360. イントロダクトリートーク ~結晶成長と結晶評価技術の重要性~

    沓掛健太朗

    第62回応用物理学会春季学術講演会  2015 

  361. 顕微PLイメージング法によるシリコン結晶中粒界でのキャリア再結合速度の定量評価

    沓掛健太朗

    日本物理学会第70回年次大会  2015 

  362. Growth and characterization of silicon ingots for solar cells: conventional, mono-like and high-performance multicrystalline silicon Invited International conference

    Kentaro Kutsukake

    The 5th Asia-Africa Sustanable Energy Forum  2015.5 

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    Venue:Tsukuba   Country:Japan  

  363. 顕微PLイメージングによるシリコン結晶中の粒界特性評価

    沓掛健太朗

    第12回 「次世代の太陽光発電システム」シンポジウム  2015 

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  364. Defect engineering of multicrystalline and mono-like silicon for solar cells: Characterization and control of grain boundaries and dislocations Invited

    Kentaro Kutsukake

    Workshop on Crystalline Silicon Solar Cells and Modules:  2015.6 

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    Venue:Keystone   Country:United States  

  365. 東北大学 金属材料研究所 先端エネルギー材料理工共創研究センターの太陽電池研究

    沓掛健太朗

    PVJapan2015  2015 

  366. キャストSiはどこまでCZ-Siに近づけるか? ―粒界と転位の影響―

    沓掛健太朗

    第76回応用物理学会秋季学術講演会  2015 

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  367. Quantitative analysis of electrical activity of grain boundaries through high spatial resolution photoluminescence imaging

    Kentaro Kutsukake

    25th International Photovoltaic Science & Engineering Conference  2015 

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  368. Electrical properties of defects in multicrystalline silicon for solar cells Invited

    Kentaro Kutsukake

    11th China SoG Silicon and PV Power Conference  2015.11 

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    Venue:Hangzhou   Country:China  

  369. 顕微発光イメージングで見る半導体結晶中欠陥の電気特性 Invited

    沓掛健太朗

    山梨大学第52回サイエンスカフェ  2015.12 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:山梨   Country:Japan  

  370. 太陽電池用モノライクSiの結晶粒界エンジニアリング

    沓掛健太朗

    東北大学研究所連携プロジェクト成果報告会  2014 

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  371. 太陽電池用シリコンの結晶評価:モノライク vs HP多結晶

    沓掛健太朗

    第61回応用物理学春季学術講演会  2014 

  372. 太陽電池用シリコン結晶の材料研究 Invited

    沓掛健太朗

    平成26年度資源素材学会春季大会  2014.3 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京   Country:Japan  

  373. Crystal growth of mono-like silicon ingot using functional grain boundaries

    Kentaro Kutsukake

    E-MRS 2014 Spring meeting  2014 

  374. 太陽電池用シリコンインゴットの比較研究:モノライクvs 微細粒多結晶

    沓掛健太朗

    東北大学金属材料研究所第127回講演会  2014 

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  375. 太陽電池用シリコン結晶の比較研究:モノライク vs HP多結晶

    沓掛健太朗

    日本学術振興会 産学協力研究委員会 次世代の太陽光発電システム第175委員会 第11回「次世代の太陽光発電システム」シンポジウム  2014 

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  376. Growth of mono-like silicon ingots using functionnal grain boundaries for solar cells

    Kentaro Kutsukake

    2014 

  377. Control of Grain Boundary Propagation in Mono-Like Si: Utilization of Functional Grain Boundaries

    Kentaro Kutsukake

    2014 

  378. Utilization of functional grain boundaryies for suppression of multi-crystallizartion of mono-like Si Invited International conference

    Kentaro Kutsukake

    10th China SoG Silicon and PV Power Conference (CSPV10)  2014.11 

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    Venue:Nangtong   Country:China  

  379. Characterization of silicon ingots: mono-like vs. HP multicrystalline

    Kentaro Kutsukake

    6th World Conference on Photovoltaic Energy Conversion  2014 

  380. Tutorial: Growth and characterization of silicon crystals for solar cells Invited International conference

    Kentaro Kutsukake

    6th World Conference on Photovoltaic Energy Conversion  2014.11 

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    Venue:Kyoto   Country:Japan  

  381. 半導体中キャリアの3次元分布計算とELイメージへの応用研究

    沓掛健太朗

    東北大学研究所連携プロジェクト成果報告会  2013 

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    Presentation type:Poster presentation  

  382. Grain boundary engineering for mono-like Si for solar cell applications

    Kentaro Kutsukake

    2nd IMR-KMU Joint Workshop on the Crystal Growth and Characterization  2013 

  383. 顕微ELイメージングによる多結晶Si中粒界の電気的特性の定量評価

    沓掛健太朗

    2013年第60回応用物理学会春季学術講演会  2013 

  384. 機能性結晶粒界によるモノライクSiの多結晶化の抑制

    沓掛健太朗

    第10回「次世代の太陽光発電システム」シンポジウム  2013 

  385. Grain boundary engineering for mono-like Si Invited International conference

    Kentaro Kutsukake

    IEEE 39th Photovoltaic Specialists Conference  2013.6 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Tampa   Country:United States  

  386. 機能性結晶粒界による超高品質シリコン結晶の実現 ブース展示

    沓掛健太朗

    PVJAPAN2013  2013 

  387. 太陽電池用モノライクSiの現状と課題 ~擬似単結晶・作製法・特性・課題・今後を詳解~

    沓掛健太朗

    Electronic Journal 第1807回Technical Seminar  2013 

  388. 機能性粒界を利用した70kgモノライクSiインゴットの成長

    沓掛健太朗

    2013年第74回応用物理学会秋季学術講演会  2013 

  389. Characterization and simulation of electrical property of grain boundaries in multicrystalline silicon by electroluminescence imaging and finite element method

    Kentaro Kutsukake

    28th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC28)  2013 

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    Presentation type:Poster presentation  

  390. Suppression of multi-crystallization of mono-like Si by functional grain boundaries

    Kentaro Kutsukake

    7th International Workshop on Crystalline Silicon Solar Cells (CSSC7)  2013 

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    Presentation type:Poster presentation  

  391. 太陽電池用モノライクSi結晶の課題と展望 Invited

    沓掛健太朗

    第6回つくばグリーンイノベーションフォーラム  2013.12 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:つくば   Country:Japan  

  392. Suppression of multi-crystallization of mono-like Si by functional grain boundaries

    Kentaro Kutsukake

    23rd Photovoltaic science and engineering conference (PVSEC23)  2013 

  393. 高効率シリコン太陽電池に向けた機能性粒界の作製と制御 Invited

    沓掛健太朗

    2013年度東北大学金属材料研究所ワークショップ「格子欠陥が挑戦する新エネルギー・環境材料開発」  2013.11 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:仙台   Country:Japan  

  394. Growth of mono-like silicon using functional grain boundaries

    Kentaro Kutsukake

    KINKEN WAKATE2013 10th International Science Scool for Young Scientists and Students  2013 

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    Presentation type:Poster presentation  

  395. 機能性結晶粒界を利用したモノライクSiのインゴット成長

    沓掛健太朗

    2013秋季東北大学金属材料研究所所内講演会  2013 

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    Presentation type:Poster presentation  

  396. 太陽電池用シリコン結晶の結晶育成仮定における転位発生メカニズム

    沓掛健太朗

    大阪大学産業科学研究所 産業科学ナノテクノロジーセンター 「第3回若手セミナー」  2012 

  397. Dislocations in multicrystalline silicon for solar cells

    Kentaro Kutsukake

    1st IMR & KMU Joint Workshop  2012 

  398. シリコン結晶中の対応粒界の粒界転位構造と結晶成長に伴う変化

    沓掛健太朗

    日本物理学会 第67回年次大会  2012 

  399. Study of crystal growth of super high-quality silicon crystal with grain boundaries with controlled configurations for solar cells

    Kentaro Kutsukake

    2012 

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    Presentation type:Poster presentation  

  400. 太陽電池用超高品質シリコン結晶を目指した機能性結晶粒界の作製と制御

    沓掛健太朗

    第9回「次世代の太陽光発電システム」シンポジウム  2012 

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    Presentation type:Poster presentation  

  401. Growth and characterization of grain boundaries artificially formed in Si crystal by using CZ, FZ and Bridgman methods

    Kentaro Kutsukake

    International Conference on Extended Defects in Semiconductors 2012 (EDS-2012)  2012 

  402. 機能性結晶粒界による太陽電池用超高品質シリコン結晶の実現

    沓掛健太朗

    第5回半導体ワークショップ  2012 

  403. 機能性結晶粒界によるモノキャストSi成長における多結晶化の抑制

    沓掛健太朗

    2012秋季 第73回 応用物理学学術講演会  2012 

  404. シリコン多結晶インゴット成長過程における転位発生についてのレビューと考察

    沓掛健太朗

    2012秋季 第73回 応用物理学学術講演会  2012 

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    Presentation type:Poster presentation  

  405. Quantitative analysis of carrier recombination property at grain boundaries in multicrystalline silicon using micro-image of electroluminescence

    Kentaro Kutsukake

    27th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC27)  2012 

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    Presentation type:Poster presentation  

  406. A new mono-cast Si technique using functional grain boundaries

    Kentaro Kutsukake

    The 6th International workshop on Crystalline Silicon for Solar Cells (CSSC6)  2012 

  407. Grain boundaries in silicon crystals: Crystallographic interaction and dislocation generation during crystal growth Invited International conference

    Kentaro Kutsukake

    The 18th International Conference on Crystal Growth and Epitaxy  2016.8 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Nagoya   Country:Japan  

  408. 物理計測の適応的マッピング Invited

    沓掛健太朗

    日本鉄鋼協会東海支部・日本金属学会東海支部学術討論会  2018.1 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋   Country:Japan  

  409. データ科学を活用した材料創製・材料評価に向けて Invited

    沓掛健太朗

    日本金属学会2018年春季講演大会  2018.3 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:習志野   Country:Japan  

  410. 物理計測の適応的マッピング Invited

    沓掛健太朗

    日本学術振興会第151委員会平成30年度第2回研究会  2018.6 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京   Country:Japan  

  411. 機械学習を用いたSiC研削加工条件探索 Invited

    沓掛健太朗

    結晶工学分科会第154回研究会  2021.4 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン開催   Country:Japan  

  412. Process Informatics for Si and SiC Wafers Using AI/ML Invited International conference

    Kentaro Kutsukake

    2022 International Conference on Electronics Packaging (ICEP 2022)  2022.5 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Online  

  413. Machine learning study for Czochralski growth of Si Invited International conference

    Kentaro Kutsukake

    International Conference on Sustainable Materials and Technologies for Energy and Bio Applications  2022.7 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Online  

  414. Materials Informatics for the semiconductor crystal growth Invited International conference

    Kentaro Kutsukake

    19th International Conference on Defects-Recognition, Imaging and Physics in Semiconductors  2022.8 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Online  

  415. Materials process informatics for crystal growth Invited International conference

    Kentaro Kutsukake

    IIndInternational Conference on Emerging Nanomaterials in Chemical, Biological and Engineering Applications (INBCEA - 2025)  2025.3.13 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Online   Country:India  

  416. 半導体熱処理条件の最適化における既存条件を考慮した目的関数の検討

    沓掛健太朗、笠原亮太郎、原田俊太、宇治原徹、関翔太、高石将暉、永井勇太

    第72回応用物理学会春季学術講演会  2025.3.17  公益社団法人 応用物理学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京理科大学野田キャンパス、オンライン開催   Country:Japan  

  417. インフォマティクスによる結晶工学シミュレーションの加速 Invited

    沓掛健太朗

    第29回結晶工学セミナー,第9回インフォマティクス応用研究会  2025.2.20  公益社団法人応用物理学会 結晶工学分科会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:上智大四谷キャンパス、オンライン開催   Country:Japan  

  418. 半導体結晶プロセス開発へのインフォマティクス応用 Invited

    沓掛健太朗

    第3回プロセスインフォマティクスセミナー  2025.2.19  非営利型一般社団法人 製造業AI普及協会

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン開催   Country:Japan  

  419. Applications of Machine Learning in the field of Crystal Growth Invited International conference

    Kentaro Kutsukake

    International Conference on Hierarchally Structured Materials (ICHSM- 2025)  2025.2.7 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:BLOCK V–GALLERY HALL   Country:India  

  420. Applications of Machine Learning in the field of Crystal Growth Invited International conference

    Kentaro Kutsukake

    International Conference on Sustainable Materials and Advances in Regenerative Technologies  2025.1.31 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Sona College of Technology, Salem   Country:India  

  421. AIを活用した材料プロセス開発 -半導体結晶成長を中心に- Invited

    沓掛健太朗

    第2回『生産現場におけるプロセス・インフォマティクス(PI)によるものづくり革新』研究会  2024.12.20  (公財)科学技術交流財団

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:産業技術総合研究所 中央事業所 東地区   Country:Japan  

  422. 半導体材料・デバイス開発へのインフォマティクス応用 Invited

    沓掛健太朗

    第11回電子光技術 /GaN–OIL合同シンポジウム  2024.12.19  国立研究開発法人産業技術総合研究所 電子光基礎技術研究部門

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:秋葉原UDXカンファレンス   Country:Japan  

  423. 半導体成膜における実践的なベイズ最適化 Invited

    沓掛健太朗

    第34回日本MRS年次大会  2024.12.18  日本MRS

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:横浜市開港記念会館   Country:Japan  

  424. マテリアルズ・プロセスインフォマティクスと水素貯蔵材料開発への応用 Invited

    沓掛健太朗

    日本MRS水素科学技術連携研究会 第14回トピックス研究会 ~物理学分科会~   2024.7.29  Hydrogenomics

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン開催   Country:Japan  

  425. 太陽電池用のシリコン材料の開発

    沓掛健太朗

    東北大学多元物質科学研究所 若手研究者交流講演会  2017 

  426. 太陽電池用シリコンのキャスト成長における欠陥制御

    沓掛健太朗

    学振175委員会 第6回次世代シリコン太陽電池分科会研究会  2017 

  427. データ科学的手法による効率的なマッピングの検討(2)

    沓掛健太朗

    第64回 応用物理学会春季学術講演会  2017 

  428. データ科学的手法を用いた効率的なマッピングの提案

    沓掛健太朗

    学振第175委員会 第14回「次世代の太陽光発電システム」シンポジウム  2017 

  429. シリコン結晶でどこまで行けるのか?可能性と課題

    沓掛健太朗

    次世代太陽電池セミナ-(仮称)準備意見交換会  2016 

  430. イントロダクトリートーク ~発光イメージングから見えるもの~

    沓掛健太朗

    第63回応用物理学会春季学術講演会  2016 

  431. Luminescence imaging through a spatially-resolved camera for defect characterization in silicon crystals

    Kentaro Kutsukake

    Summit of Materials Science (SMS2016) 100th Anniversary of Institute for Materials Research(Tohoku Univ. IMR)  2016 

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KAKENHI (Grants-in-Aid for Scientific Research) 4

  1. Complex crystal growth modeling and process design in latent space

    Grant number:22H00300  2022.4 - 2025.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Coinvestigator(s) 

  2. Quantification of electrical properties of defects in semiconductor crystals from a luminescence image

    Grant number:16H03856  2016.4 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    Kutsukake Kentaro, Tanikawa Tomoyuki

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    Authorship:Principal investigator 

    Grant amount:\16770000 ( Direct Cost: \12900000 、 Indirect Cost:\3870000 )

    We worked in research and development of a method to quantify electrical properties of defects in semiconductor crystals from a luminescence image. High quality crystals of BaSi2 and SiC obtained in this research were used as measurement samples for the development. We obtained an accurate, high sensitivity, high speed, and high efficiency quantification method by combining computational methods such as carrier simulation, image processing and machine learning with fundamental physics of semiconductor and crystal defects. We work toward practical use of the obtained methods, techniques and knowledge.

  3. Investigation of physical properties of grain boundary in organic semiconductor-based polycrystalline thin films

    Grant number:16K04943  2016.4 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    SAKURAI TAKEAKI, Rand Barry

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    Authorship:Coinvestigator(s) 

    Identifying and controlling properties of grain boundaries in organic thin films is essential to reducing the energy loss of the device. In this study, we clarified the correlation between the aggregation structure (defect structure) of the molecules near the grain boundaries and their electronic properties. We demonstrated in detail what kind of grain boundary structure causes the energy loss of the devices.

  4. Study of melt growth mechanisms of multicrystalline Si by in situ observations

    Grant number:26246016  2014.6 - 2017.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    Fujiwara Kozo

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    The fundamental melt growth mechanisms of multicrystalline Si (mc-Si) were investigated to obtain valuable information for the development of crystal growth technology of mc-Si ingots for solar cells. We newly developed an in situ observation system for the direct observation of crystal/melt interface at high temperature as 1400℃. The effect of grain boundaries on the crystal growth behaviors was clarified. On the basis fo the fundamental understanding of crystal growth mechanisms, we developed a crystal growth technology for mc-Si ingot. We obtained high quality mc-Si ingot in comparison with the conventional one.

 

Teaching Experience (On-campus) 2

  1. 物質科学特別講義

    2024

  2. 応用データサイエンス

    2024

Teaching Experience (Off-campus) 1

  1. Machine learning fundamentals and applications

    2025.1 - 2025.2 SSN Institute)

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    Level:Postgraduate  Country:India

 

Social Contribution 8

  1. 応用物理学会学術講演会シンポジウム世話人

    Role(s):Planner, Organizing member

    応用物理学会  第72回応用物理学会春季学術講演会シンポジウム「マテリアルデータベースの新展開 ー知識を蓄積・抽出・俯瞰するー」  2025.3

  2. 応用物理学会結晶工学分科会セミナー世話人

    Role(s):Presenter, Planner, Organizing member

    応用物理学会結晶工学分科会  第29回結晶工学セミナー「結晶工学におけるシミュレーション・インフォマティクスの基礎と応用」  2025.2

  3. 日本MRS年次大会シンポジウム世話人

    Role(s):Presenter, Planner, Organizing member

    日本MRS  第34回日本MRS年次大会「データ・計算駆動/AI・ロボット駆動による材料開発」  2024.12

  4. 応用物理学会結晶工学分科会講演会世話人

    Role(s):Presenter, Planner, Organizing member

    応用物理学会結晶工学分科会  第3回結晶工学講演会「 結晶工学x生成AI ~ホントに使える!?どこまで使える?生成AI〜」  2024.11

  5. 35th International Conference on Photovoltaic Science and Engineering プログラム委員

    Role(s):Planner, Organizing member

    35th International Conference on Photovoltaic Science and Engineering  35th International Conference on Photovoltaic Science and Engineering  2024.11

  6. 応用物理学会産学連携委員会ワークショップ実行委員

    Role(s):Planner, Organizing member

    応用物理学会 半導体の結晶成長と加工および評価に関する産学連携委員会  第1回 半導体結晶技術に関する産学連携ワークショップ  2024.10 - 2024.11

  7. 応用物理学会学術講演会シンポジウム世話人

    Role(s):Presenter, Planner, Organizing member

    応用物理学会  第85回応用物理学会秋季学術講演会シンポジウム「AI・ロボットによる自律駆動型研究がもたらす研究パラダイムシフト」  2024.9

  8. 日本結晶成長学会誌編集委員

    Role(s):Editer

    日本結晶成長学会  日本結晶成長学会誌  2023.4 - 2025.3

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