Organizing Committee of the 33rd International Photovoltaic Science and Engineering Conference   Organizing committee, Steering committee  

2021.3 - 2022.11   

国際固体素子材料コンファレンス論文委員会   論文委員  

2011.12 - 2022.12   

フロンティア太陽電池セミナー組織委員会   世話人  

2016.8   

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）実行委員会   実行委員・プログラム委員  

2023.12 - 2024.7   

第19回「次世代の太陽光発電システム」シンポジウム（第2回日本太陽光発電学会学術講演会）実行委員会   実行委員  

2021.12 - 2022.7   

Organizing Committee of the 8th World Conference on Photovoltaic Energy Conversion   Organizing committee  

2021.10 - 2022.9   

第17回「次世代の太陽光発電システム」シンポジウム実行委員会   Web担当  

2019.11 - 2020.10   

応用物理学会　機関誌企画・編集委員会   委員  

2019.4 - 2021.3   

日本学術振興会第175委員会第16回「次世代の太陽光発電システム」シンポジウム実行委員会   広報担当委員  

2018.12 - 2019.7   

応用物理学会若手チャプター「太陽光エネルギー変換機能材料・デバイス開発研究会」   広報担当  

2018.1   

日本学術振興会第175委員会第15回「次世代の太陽光発電システム」シンポジウム実行委員会   広報担当委員  

2017.12 - 2018.7   

10th International Workshop on Crystalline Silicon for Solar Cells (CSSC-10) Organizing Committee   Organizing Committee member  

2017.6 - 2018.4   

日本学術振興会第175委員会第14回「次世代の太陽光発電システム」シンポジウム実行委員会   プログラム委員長  

2016.12 - 2017.7   

フロンティア太陽電池セミナー組織委員会   世話人  

2016.8   

低炭素社会実現のための太陽光エネルギー変換機能材料・デバイス開発研究会   座長  

2016.4 - 2018.3   

Organizing Committee of the 27th International Photovoltaic Science and Engineering Conference   Organizing committee, Steering committee  

2016.4 - 2017.11   

日本学術振興会第175委員会   運営委員（幹事）  

2014.4 - 2020.10   

WCPEC-6 Steering committee   General affairs  

2013.4 - 2014.11   

国際固体素子材料コンファレンス論文委員会   論文委員  

2011.12   

平成21年度手島精一記念研究賞博士論文賞

2010.2   東京工業大学  

Best Paper Award

2009.11   Organizing committee of the 19th International Photovoltaic Science and Engineering Conference  

Yasuyoshi Kurokawa

Poster Award

2009.9   The 24th European Photovoltaic Solar Energy Conference  

Best Presentation Award

2008.12   Tokyo Institute of Technology Energy Global COE  

Master Student Award

2006.12   IEEE Tokyo Yound Researchers Worksop Executive Committee  

イノベイティブPV奨励賞

2006.7   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  

Effect of the Niobium-Doped Titanium Oxide Thickness and Thermal Oxide Layer for Silicon Quantum Dot Solar Cells as a Dopant-Blocking Layer Reviewed International journal

Ryushiro Akaishi, Kohei Kitazawa, Kazuhiro Gotoh, Shinya Kato, Noritaka Usami, Yasuyoshi Kurokawa

Nanoscale Research Letters   Vol. 15 ( 1 ) page： 39   2020

Local Structure of High Performance TiO <inf>x</inf> Electron-Selective Contact Revealed by Electron Energy Loss Spectroscopy Reviewed International journal

Mochizuki Takeya, Gotoh Kazuhiro, Kurokawa Yasuyoshi, Yamamoto Takahisa, Usami Noritaka

Advanced Materials Interfaces   Vol. 6 ( 3 ) page： 1801645   2019.2

Bandgap tuning of silicon nanowire arrays for application to all-silicon tandem solar cells Reviewed International journal

Y. Kurokawa, M. Yano, S. Miyajima, and A. Yamada

Jpn. J. Appl. Phys.   Vol. 56   page： 04CS03   2017.2

Photoluminescence from silicon quantum dots in Si quantum dots/amorphous SiC superlattice Reviewed International journal

Kurokawa Yasuyoshi, Tomita Shigeki, Miyajima Shinsuke, Yamada Akira, Konagai Makoto

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 46 ( 33-35 ) page： L833 - L835   2007.9

Preparation of nanocrystalline silicon in amorphous silicon carbide matrix Reviewed International journal

Kurokawa Yasuyoshi, Miyajima Shinsuke, Yamada Akira, Konagai Makoto

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 45 ( 37-41 ) page： L1064 - L1066   2006.10

Hydrogenation of silicon-nanocrystals-embedded silicon oxide passivating contacts Reviewed

Matsumi, M; Gotoh, K; Wilde, M; Kurokawa, Y; Fukutani, K; Usami, N

NANOTECHNOLOGY   Vol. 35 ( 10 )   2024.3

Core-shell yarn-structured triboelectric nanogenerator for harvesting both waterdrop and biomechanics energies Reviewed

Wang, HT; Kurokawa, Y; Zhang, JH; Gotoh, K; Liu, X; Miyamoto, S; Usami, N

APPLIED PHYSICS EXPRESS   Vol. 17 ( 1 )   2024.1

Influence of Insertion Position of a LiF Buffer Layer on Passivation Performance of Crystalline Si/SiOy/TiOx/Al Heterostructures Reviewed International journal

Shohei Fukaya, Kazuhiro Gotoh, Takuya Matsui, Hitoshi Sai, Yasuyoshi Kurokawa, Noritaka Usami

Proc. 50th IEEE Photovoltaic Specialists Conference     page： 1 - 3   2023.12

Numerical Simulation Study for Analysis of Hydrogenated Amorphous Silicon/Crystalline Silicon Heterostructure by Reactive Molecular Dynamics Method Reviewed International journal

Proc. 50th IEEE Photovoltaic Specialists Conference     page： 1 - 3   2023.12

Free-Standing Electrode and Fixed Surface Tiny Electrode Implemented Tiboelectric Nanogenerator with High Instantaneous Current Reviewed

Wang, HT; Kurokawa, Y; Wang, J; Cai, WT; Zhang, JH; Kato, S; Usami, N

SMALL     page： e2308531   2023.12

The effect of room-temperature plastic deformation in darkness on the photoluminescence properties of ZnS Reviewed

Ogura, Y; Nakamura, A; Kameyama, T; Kurokawa, Y; Tochigi, E; Shibata, N; Torimoto, T; Hoshino, S; Yokoi, T; Matsunaga, K

JOURNAL OF THE AMERICAN CERAMIC SOCIETY   Vol. 107 ( 4 ) page： 2040 - 2047   2023.11

Improvement of passivation performance of silicon nanocrystal/silicon oxide compound layer by two-step hydrogen plasma treatment Reviewed

M. Matsumi, K. Gotoh, M. Wilde, Y. Kurokawa, K. Fukutani and N. Usami

Solar Energy Materials and Solar Cells   Vol. 262   page： 112538   2023.10

Nanoscale Size Control of Si Pyramid Texture for Perovskite/Si Tandem Solar Cells Enabling Solution-Based Perovskite Top-Cell Fabrication and Improved Si Bottom-Cell Response Reviewed

Li, YQ; Sai, H; Mcdonald, C; Xu, ZH; Kurokawa, Y; Usami, N; Matsui, T

ADVANCED MATERIALS INTERFACES   Vol. 10 ( 35 )   2023.9

Impact of B<inf>2</inf>H<inf>6</inf>plasma treatment on contact resistivity in silicon heterojunction solar cells Reviewed

Gotoh K., Ozaki R., Morimura M., Tanaka A., Iseki Y., Nakamura K., Muramatsu K., Kurokawa Y., Ohshita Y., Usami N.

Japanese Journal of Applied Physics   Vol. 62 ( SK )   2023.8

Quantitative evaluation of implied open-circuit voltage after metal electrode deposition on TiO <inf>x</inf> /Si heterostructures by photoluminescence imaging: impact of metallization on passivation performance Reviewed

Fukaya S., Gotoh K., Matsui T., Sai H., Kurokawa Y., Usami N.

Japanese Journal of Applied Physics   Vol. 62 ( SK )   2023.8

Fabrication of light trapping structures specialized for near-infrared light by nanoimprinting for the application to thin crystalline silicon solar cells Reviewed

Kimata Yuto, Gotoh Kazuhiro, Miyamoto Satoru, Kato Shinya, Kurokawa Yasuyoshi, Usami Noritaka

DISCOVER NANO   Vol. 18 ( 1 ) page： 72   2023.5

Performance enhancement of droplet-based electricity generator using a CYTOP intermediate layer Reviewed

Japanese Journal of Applied Physics   Vol. 62 ( SC ) page： SC1032   2023.1

Study on the Etching Characteristics and Thermal Conductivity of Porous Silicon Nanowire Arrays Using Highly Doped Silicon Reviewed

Li Haibin, Kato Shinya, Kurokawa Yasuyoshi, Soga Tetsuo

e-Journal of Surface Science and Nanotechnology   Vol. advpub ( 0 )   2022.12

A novel self-separating silicon nanowire thin film and application in lithium-ion batteries Reviewed

Li H., Kato S., Ishii Y., Kurokawa Y., Soga T.

Nano Express   Vol. 3 ( 4 )   2022.12

Performance enhancement of droplet-based electricity generator using a CYTOP intermediate layer Reviewed International journal

Haitao Wang, Yasuyoshi Kurokawa, Kazuhiro Gotoh, Shinya Kato, Shigeru Yamada, Takashi Itoh, Noritaka Usami

Ext. Abstr. 2022 International Conference on Solid State Devices and Materals     page： 145 - 146   2022.9

Preparation and thermoelectric characterization of boron-doped silicon nanocrystals/silicon oxide multilayers Reviewed International journal

Keisuke Shibata, Shinya Kato, Masashi Kurosawa, Kazuhiro Gotoh, Satoru Miyamoto, Noritaka Usami, Yasuyoshi Kurokawa

Ext. Abstr. 2022 International Conference on Solid State Devices and Materals     page： 147 - 148   2022.9

Nanopyramid Texture Formation by One-Step Ag-Assisted Solution Process for High-Efficiency Monocrystalline Si Solar Cells Reviewed

Li Y., Sai H., Matsui T., Xu Z., Nguyen V.H., Kurokawa Y., Usami N.

Solar RRL     2022.9

Influence of post-oxidizing treatment on passivation performance on the spin-coated titanium oxide films on crystalline silicon Reviewed

Hao Luo, Van Hoang Nguyen, Kazuhiro Gotoh, Saya Ajito, Tomohiko Hojo, Yasuyoshi Kurokawa, Eiji Akiyama and Noritaka Usami

Thin Solid Films   Vol. 764   page： 139597   2022.9

Enhancement of reflectance reduction of solar cells by a silicon nanoparticle layer on a textured silicon substrate Reviewed

Shinya Kato, Yasuhoshi Kurakawa, Tetsuo Soga

Results in Optics   Vol. 9   page： 100296   2022.9

Fabrication of Silicon Heterojunction Solar Cells with Light Trapping Structures Specialized for Near-Infrared Light by Nanoimprinting Reviewed International journal

Y. Kimata, K. Gotoh, S. Miyamoto, Y. Kurokawa, N. Usami

Proc. 8th World Conference on Photovoltaic Energy Conversion     page： 230 - 233   2022.9

Improvement of Passivation Performance of Silicon Nanocrystal/Silicon Oxide Compound Layer by Hydrogen Plasma Treatment Reviewed International journal

M. Matsumi, K. Gotoh, M. Wilde, Y. Kurokawa, K. Fukutani, N. Usami

Proc. 8th World Conference on Photovoltaic Energy Conversion     page： 402 - 405   2022.9

Improved conversion efficiency of p-type BaSi2/n-type crystalline Si heterojunction solar cells by a low growth rate deposition of BaSi2 Reviewed

Fujiwara Michinobu, Takahashi Kazuma, Nakagawa Yoshihiko, Gotoh Kazuhiro, Itoh Takashi, Kurokawa Yasuyoshi, Usami Noritaka

AIP ADVANCES   Vol. 12 ( 4 )   2022.4

Fabrication of BaSi<inf>2</inf>homojunction diodes on Nb-doped TiO<inf>2</inf>coated glass substrates by aluminum-induced crystallization and two-step evaporation method Reviewed

Kurokawa Y., Yoshino T., Gotoh K., Miyamoto S., Usami N.

Japanese Journal of Applied Physics   Vol. 61 ( SC )   2022.2

Silicon Nanocrystals Embedded in Nanolayered Silicon Oxide for Crystalline Silicon Solar Cells Reviewed

Tsubata R., Gotoh K., Matsumi M., Wilde M., Inoue T., Kurokawa Y., Fukutani K., Usami N.

ACS Applied Nano Materials     2022.1

Impact of chemically grown silicon oxide interlayers on the hydrogen distribution at hydrogenated amorphous silicon/crystalline silicon heterointerfaces Reviewed

Gotoh K., Wilde M., Ogura S., Kurokawa Y., Fukutani K., Usami N.

Applied Surface Science   Vol. 567   2021.11

Fabrication of heterojunction crystalline Si solar cells with BaSi2 thin films prepared by a two-step evaporation method Reviewed

Nakagawa Yoshihiko, Takahashi Kazuma, Fujiwara Michinobu, Hara Kosuke O., Gotoh Kazuhiro, Kurokawa Yasuyoshi, Itoh Takashi, Suemasu Takashi, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 60 ( 10 )   2021.9

Application of Bayesian optimization for high-performance TiO<inf>x</inf>/SiO<inf>y</inf>/c-Si passivating contact Reviewed

Miyagawa S., Gotoh K., Kutsukake K., Kurokawa Y., Usami N.

Solar Energy Materials and Solar Cells   Vol. 230   2021.9

Fabrication of BaSi2 homojunction diodes on glass substrates by aluminum induced crystallization and two-step evaporation method Reviewed International journal

Takamasa Yoshino, Yasuyoshi Kurokawa, Kazuhiro Gotoh, Satoru Miyamoto, and Noritaka Usami

Ext. Abstr. 2021 International Conference on Solid State Devices and Materals     page： 341 - 342   2021.9

Study on the Morphology of Silicon Nanowire Arrays by Using Highly Doped Silicon Reviewed International journal

Haibin Li, Shinya Kato, Yasuyoshi Kurokawa, Tetsuo Soga

Ext. Abstr. 2021 International Conference on Solid State Devices and Materals     page： 311 - 312   2021.9

Improved Performance of Titanium Oxide/Silicon Oxide Electron-Selective Contacts by Implementation of Magnesium Interlayers Reviewed

Nakagawa Y., Gotoh K., Inoue T., Kurokawa Y., Usami N.

Physica Status Solidi (A) Applications and Materials Science     2021.7

Fabrication of silicon nanowire metal-oxide-semiconductor capacitors with al2o3/tio2/al2o3 stacked dielectric films for the application to energy storage devices Reviewed

Nezasa R., Gotoh K., Kato S., Miyamoto S., Usami N., Kurokawa Y.

Energies   Vol. 14 ( 15 )   2021.7

Realization of the Crystalline Silicon Solar Cell Using Nanocrystalline Transport Path in Ultra-thin Dielectrics for Reinforced Passivating Contact Reviewed

Tsubata R., Gotoh K., Inoue T., Kurokawa Y., Usami N.

Conference Record of the IEEE Photovoltaic Specialists Conference     page： 908 - 911   2021.6

Versatile fabrication of a passivation material, solute PEDOT:PSS, for a c-Si substrate using alcoholic solvents Reviewed International coauthorship International journal

Sustainable Energy and Fuels   Vol. 5 ( 3 ) page： 666 - 670   2021.2

Passivation mechanism of the high-performance titanium oxide carrier-selective contacts on crystalline silicon studied by spectroscopic ellipsometry Reviewed International journal

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 60 ( SB ) page： SBBF04   2021.1

The impact of highly excessive PbI2 on the correlation of MAPbI(3) perovskite morphology and carrier lifetimes Reviewed International coauthorship International journal

JOURNAL OF MATERIALS CHEMISTRY C   Vol. 8 ( 41 ) page： 14481 - 14489   2020.11

Activation energy of hydrogen desorption from high-performance titanium oxide carrier-selective contacts with silicon oxide interlayers Reviewed International journal

CURRENT APPLIED PHYSICS   Vol. 21   page： 36 - 42   2020.10

Effect of Hydrogen Plasma Treatment on Silicon Quantum Dot Multilayers Using Amorphous SiOx Reviewed International journal

R. Akaishi, K. Gotoh, S. Kato, N. Usami, Y. Kurokawa

Proc. 37th European Photovoltaic Solar Energy Conference and Exhibition     page： 83 - 86   2020.9

Impact of Ge deposition temperature on parameters of c-Si solar cells with surface texture formed by etching of Si using SiGe islands as a mask Reviewed International coauthorship International journal

Nguyen V. H, Novikov A, Shaleev M, Yurasov D, Semma M, Gotoh K, Kurokawa Y, Usami N

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   Vol. 114   page： 105065   2020.8

Fabrication of silicon-nanocrystals-embedded silicon oxide passivating contacts Reviewed International journal

Proc. 47th IEEE Photovoltaic Specialists Conference   Vol. 2020-June   page： 0969 - 0972   2020.6

Work function of indium oxide thin films on p-type hydrogenated amorphous silicon Reviewed International journal

Proc. 47th IEEE Photovoltaic Specialists Conference   Vol. 2020-June   page： 0124 - 0127   2020.6

Impact of deposition of indium tin oxide double layers on hydrogenated amorphous silicon/crystalline silicon heterojunction Reviewed International journal

Semma Masanori, Gotoh Kazuhiro, Wilde Markus, Ogura Shohei, Kurokawa Yasuyoshi, Fukutani Katsuyuki, Usami Noritaka

AIP ADVANCES   Vol. 10 ( 6 ) page： 065008   2020.6

Undoped p-type BaSi2 emitter prepared by thermal evaporation and post-annealing for crystalline silicon heterojunction solar cells Reviewed International journal

Kimura Yuki, Gotoh Kazuhiro, Kurokawa Yasuyoshi, Usami Noritaka

APPLIED PHYSICS EXPRESS   Vol. 13 ( 5 ) page： 051002   2020.5

Synthesis of Mg2Si thin film by thermal treatment under inert gas atmosphere and evaluation of film quality Reviewed International journal

Horiba Issei, Fujiwara Michinobu, Nakagawa Yoshihiko, Gotoh Kazuhiro, Kurokawa Yasuyoshi, Itoh Takashi, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 59 ( SF ) page： SFFB03   2020.4

Effects of evaporation vapor composition and post-annealing conditions on carrier density of undoped BaSi2 evaporated films Reviewed International journal

Kimura Yuki, Fujiwara Michinobu, Nakagawa Yoshihiko, Gotoh Kazuhiro, Kurokawa Yasuyoshi, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 59 ( SF ) page： SFFA05   2020.4

Influence of the time-dependent vapor composition on structural properties of the BaSi2 thin films fabricated by vacuum evaporation Reviewed International journal

Yoshino Takamasa, Nakagawa Yoshihiko, Kimura Yuki, Fujiwara Michinobu, Kurokawa Yasuyoshi, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 59 ( SF ) page： SFFA10   2020.4

Effect of hydrogen plasma treatment on the passivation performance of TiOx on crystalline silicon prepared by atomic layer deposition Reviewed International journal

Miyagawa Shinsuke, Gotoh Kazuhiro, Ogura Shohei, Wilde Markus, Kurokawa Yasuyoshi, Fukutani Katsuyuki, Usami Noritaka

Journal of Vacuum Science & Technology A   Vol. 38 ( 2 ) page： 022410   2020.3

Effect of forming gas annealing on hydrogen content and surface morphology of titanium oxide coated crystalline silicon heterocontacts Reviewed International journal

Nakagawa Yuta, Gotoh Kazuhiro, Wilde Markus, Ogura Shohei, Kurokawa Yasuyoshi, Fukutani Katsuyuki, Usami Noritaka

Journal of Vacuum Science & Technology A   Vol. 38 ( 2 ) page： 022415   2020.3

Tuning the Electrical Properties of Titanium Oxide Bilayers Prepared by Atomic Layer Deposition at Different Temperatures Reviewed International journal

Gotoh Kazuhiro, Mochizuki Takeya, Kurokawa Yasuyoshi, Usami Noritaka

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE   Vol. 216 ( 22 ) page： 1900495   2019.11

Hydrogen concentration at a-Si:H/c-Si heterointerfaces - The impact of deposition temperature on passivation performance Reviewed International journal

Kazuhiro Gotoh Markus Wilde Shinya Kato Shohei Ogura Yasuyoshi Kurokawa Katsuyuki Fukutani Noritaka Usami

AIP Advances   Vol. 9 ( 7 ) page： 075115   2019.7

Evidence of solute PEDOT:PSS as an efficient passivation material for fabrication of hybrid c-Si solar cells Reviewed International journal

Van Hoang Nguyen, Kato Shinya, Gotoh Kazuhiro, Kurokawa Yasuyoshi, Usami Noritaka

SUSTAINABLE ENERGY & FUELS   Vol. 3 ( 6 ) page： 1448 - 1454   2019.6

Electrical properties of TiO TiO<inf>x</inf>bilayer prepared by atomic layer deposition at different temperatures Reviewed International journal

Proc. 46th IEEE Photovoltaic Specialists Conference   Vol. 2   page： 3574 - 3576   2019.6

Impact of size distributions of Ge islands as etching masks for anisotropic etching on formation of anti-reflection structures Reviewed International coauthorship International journal

Ota Yushi, Yurasov Dmitry, Novikov Alexey, Shaleev Mikhail, Gotoh Kazuhiro, Kurokawa Yasuyoshi, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 58 ( 4 ) page： 045505   2019.4

Epitaxial growth of SiGe on Si substrate by printing and firing of Al–Ge mixed paste Reviewed International journal

S. Fukami, Y. Nakagawa, M. F. Hainey, Jr., K. Gotoh, Y. Kurokawa, M. Nakahara, M. Dhamrin, and N. Usami

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 59 ( SG ) page： SGGF09   2019.3

Silicon Nanowire Heterojunction Solar Cells with an Al2O3 Passivation Film Fabricated by Atomic Layer Deposition Reviewed International journal

Kato Shinya, Kurokawa Yasuyoshi, Gotoh Kazuhiro, Soga Tetsuo

NANOSCALE RESEARCH LETTERS   Vol. 14 ( 1 ) page： 99   2019.3

Fabrication of a Silicon Nanowire Solar Cell on a Silicon-on-Insulator Substrate Reviewed International journal

Kato Shinya, Kurokawa Yasuyoshi, Gotoh Kazuhiro, Soga Tetsuo

APPLIED SCIENCES-BASEL   Vol. 9 ( 5 ) page： 818   2019.3

Evaluation of Si Nanowire MOS Capacitor Using High-k Dielectric Materials Reviewed International journal

R. Nezasa, Y. Kurokawa, N Usami

Proc. 2018 IEEE 18th International Conference on Nanotechnology (IEEE-NANO)     page： 1 - 4   2019.1

Improvement of the Electrical Property of Silicon Nanoparticle Films Reviewed International journal

Shinya Kato, Shinsuke Kumagai, Caixeta Bonfim Gabriel, Eiji Ichihara, Naoki Kishi, Tetsuo Soga

2018 IEEE 7th WCPEC Proceeding     page： 0333 - 0337   2018.11

Deposition and Characterization of Si Quantum Dot Multilayers Prepared by Plasma Enhanced Chemical Vapor Deposition using SiH4 and CO2 Gases Reviewed International journal

Ryushiro Akaishi, Kouhei Kitazawa, Satoshi Ono, Kazuhiro Gotoh, Eiji Ichihara, Shinya Kato, Noritaka Usami, Yasuyoshi Kurokawa

2018 IEEE 7th WCPEC Proceeding     page： 2852 - 2856   2018.11

Local Structure of High Performance TiOxPassivating Layer Revealed by Electron Energy Loss Spectroscopy Reviewed International journal

T. Mochizuki, K. Gotoh, A. Ohta, Y. Kurokawa, S. Miyazaki, T. Yamamoto, N. Usami

2018 IEEE 7th WCPEC Proceeding     page： 3896 - 3899   2018.11

Improving intrinsic silicon nanoparticle film by press treatment for use in p-i-n solar cells Reviewed International journal

Eiji Ichihara, Shinya Kato, Ryushiro Akaishi, Kazuhiro Gotoh, Yasuyoshi Kurokawa, Naoki Kishi, Tetsuo Soga

2018 IEEE 7th WCPEC Proceeding     page： 317 - 320   2018.11

Application of light trapping structure using Ge dot mask by alkaline etching to heterojunction solar cell Reviewed International journal

Atsushi Hombe, Yasuyoshi Kurokawa, Kazuhiro Gotoh, Noritaka Usami

2018 IEEE 7th WCPEC Proceeding     page： 3097 - 3101   2018.11

Structural, Optical and Electrical Characterization of Heterojunction Rib-Si Solar Cells Reviewed International journal

Makoto Konagai, Rei Kondo, Toshiki Otani, Satomi Takahashi, Kentarou Sawano, Yukimi Ichikawa, Kazuyoshi Nakada, Yasuyoshi Kurokawa

2018 IEEE 7th WCPEC Proceeding   Vol. - ( - ) page： - - -   2018.11

Fabrication and properties characterization of BaSi2 thin-films thermally-evaporated on Ge (100) modified substrates Reviewed International journal

Mai Thi Kieu Lien, Nakagawa Yoshihiko, Kurokawa Yasuyoshi, Usami Noritaka

THIN SOLID FILMS   Vol. 663   page： 14 - 20   2018.10

Activation mechanism of TiOx passivating layer on crystalline Si Reviewed International journal

Mochizuki Takeya, Gotoh Kazuhiro, Ohta Akio, Ogura Shohei, Kurokawa Yasuyoshi, Miyazaki Seiichi, Fukutani Katsuyuki, Usami Noritaka

APPLIED PHYSICS EXPRESS   Vol. 11 ( 10 ) page： 102301   2018.10

Stacks of a-SiOx:H/a-Si:H Passivation Layer for Low Parasitic Absorption and High Passivation in Silicon Heterojunction Solar Cells Reviewed International journal

K. Gotoh, M. Cui, R. Akaishi, Y. Kurokawa, N. Usami

Proceedings of the 35th European Photovoltaic Solar Energy Conference and Exhibition     page： 636 - 638   2018.9

Investigation of effective near-infrared light-trapping structure with submicron diameter for crystalline silicon thin film solar cells Reviewed International journal

Sei Miki, Kurokawa Yasuyoshi, Kato Shinya, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 57 ( 8 ) page： 08RB21   2018.8

Influence of barrier layer's height on the performance of Si quantum dot solar cells Reviewed International journal

Kitazawa Kouhei, Akaishi Ryushiro, Ono Satoshi, Takahashi Isao, Usami Noritaka, Kurokawa Yasuyoshi

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 57 ( 8 ) page： 08RF08   2018.8

Formation of light-trapping structure using Ge islands grown by gas-source molecular beam epitaxy as etching masks Reviewed International coauthorship International journal

Ota Yushi, Hombe Atsushi, Nezasa Ryota, Yurasov Dmitry, Novikov Alexey, Shaleev Mikhail, Baidakova Natalie, Morozova Elena, Kurokawa Yasuyoshi, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 57 ( 8 ) page： 08RB04   2018.8

Fabrication of light-trapping structure by selective etching of thin Si substrates masked with a Ge dot layer and nanomasks Reviewed International coauthorship International journal

Hombe Atsushi, Kurokawa Yasuyoshi, Gotoh Kazuhiro, Akagi Seimei, Yamamoto Yuzo, Yurasov Dmitry, Novikov Alexey, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 57 ( 8 ) page： 08RF09   2018.8

Solid State Devices and Materials FOREWORD Reviewed

Kageshima Hiroyuki, Hosoi Takuji, Iwamoto Satoshi, Arie Takayuki, Fujino Masahisa, Fukuzaki Yuzo, Harada Syunta, Ikegami Masashi, Iwamuro Noriyuki, Johguchi Koh, Kakushima Kuniyuki, Kanaya Haruichi, Kikuchi Akihiko, Kinoshita Kentaro, Kuroda Rihito, Kurokawa Yasuyoshi, Maehashi Kenzo, Maekawa Keiichi, Makino Toshiharu, Matsushima Toshinori, Miyata Toshitaka, Morioka Hiroshi, Morioka Hiroshi, Murugesan Mariappan, Nagashio Kosuke, Nagata Takahiro, Nakatsuka Osamu, Nishiyama Nobuhiko, Oiwa Akira, Okada Hiroyuki, Ono Teruo, Sakamoto Toshitsugu, Sakata Toshiya, Shirao Mizuki, Sukegawa Kazuo, Suzuki Toshikazu, Suzuki Hidetoshi, Taima Tetsuya, Tanaka Tetsu, Tatsuoka Kohichi, Tawara Takehiko, Tsuda Kunio, Yamamoto Kazuhiko

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 57 ( 4 )   2018.4

Formation of black silicon using SiGe self-assembled islands as a mask for selective anisotropic etching of silicon International coauthorship International journal

Yurasov D. V., Novikov A. V., Shaleev M. V., Baidakova N. A., Morozova E. E., Skorokhodov E. V., Ota Y., Hombe A., Kurokawa Y., Usami N.

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING   Vol. 75   page： 143 - 148   2018.3

Fabrication of silicon nanowire based solar cells using TiO2/Al2O3 stack thin films Reviewed International journal

Yasuyoshi Kurokawa, Ryota Nezasa, Shinya Kato, Hisashi Miyazaki, Isao Takahashi, Noritaka Usami

MRS Advances   Vol. 3 ( 25 ) page： 1419 - 1426   2018

Alternative simple method to realize p-type BaSi2 thin films for Si heterojunction solar cell applications Reviewed International journal

Kazuma Takahashi, Yoshihiko Nakagawa, Kosuke O. Hara, Isao Takahashi, Yasuyoshi Kurokawa, Noritaka Usami

MRS Advances   Vol. 3 ( 25 ) page： 1435 - 1442   2018

EFFECT OF NOVEL SUB-MICRON STRUCTURE FABRICATED ONTO CRYSTALLINE SILICON ON OPTICAL PROPERITES AND MINORITY CARRIER LIFETIME Reviewed International journal

Sei Miki, Kurokawa Yasuyoshi, Kato Shinya, Gotoh Kazuhiro, Usami Noritaka

Proc. Grand Renewable Energy 2018   Vol. 1 ( 0 )   2018

Selective Etching of Si, SiGe, Ge and Its Usage for Increasing the Efficiency of Silicon Solar Cells Reviewed International coauthorship International journal

N. A. Baidakova, V. A. Verbus, E. E. Morozova, A. V. Novikov, E. V. Skorohodov, M. V. Shaleev, D.V. Yurasov, A. Hombe, Y. Kurokawa, and N. Usami

Semiconductors   Vol. 51 ( 12 ) page： 1542 - 1546   2017.12

Development of Spin-coated Copper Iodide Film on Silicon for Use in Hole-selective Contacts Reviewed International journal

K. Gotoh, M. Cui, I. Takahashi, Y. Kurokawa, and N. Usami

Energy Procedia   Vol. 124   page： 598 - 603   2017.9

Fabrication of BaSi2 thin films capped with amorphous Si using a single evaporation source Reviewed International journal

Hara Kosuke O., Cham Thi Trinh, Kurokawa Yasuyoshi, Arimoto Keisuke, Yamanaka Junji, Nakagawa Kiyokazu, Usami Noritaka

THIN SOLID FILMS   Vol. 636   page： 546 - 551   2017.8

Peeling process of thin-film solar cells using graphene layers Reviewed International journal

R. Ishikawa, Y. Kurokawa, S. Miyajima, and M. Konagai

Applied Physics Express   Vol. 10   page： 082301   2017.7

Effects of surface morphology randomness on optical properties of Si-based photonic nanostructures Reviewed International journal

Yasuyoshi Kurokawa, Osamu Aonuma, Takeshi Tayagaki, Isao Takahashi and Noritaka Usami

Jpn. J. Appl. Phys.   Vol. 56 ( 8S2 ) page： 08MA02   2017.7

Postannealing effects on undoped BaSi<inf>2</inf>evaporated films grown on Si substrates Reviewed International coauthorship International journal

Takamichi Suhara, Koichi Murata, Aryan Navabi, Kosuke O. Hara, Yoshihiko Nakagawa, Cham Thi Trinh, Yasuyoshi Kurokawa, Takashi Suemasu, Kang L. Wang, Noritaka Usami

Japanese Journal of Applied Physics   Vol. 56 ( 5S1 ) page： 05DB05   2017.5

Growth of BaSi2 film on Ge(100) by vacuum evaporation and its photoresponse properties Reviewed International journal

Cham Thi Trinh, Nakagawa Yoshihiko, Hara Kosuke O., Kurokawa Yasuyoshi, Takabe Ryota, Suemasu Takashi, Usami Noritaka

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 56 ( 5 ) page： 05DB06   2017.5

Investigation of p-type emitter layer materials for heterojunction barium disilicide thin film solar cells Reviewed International journal

K. Takahashi, Y. Nakagawa, K. O. Hara, Y. Kurokawa, and N. Usami

Jpn. J. Appl. Phys.   Vol. 56   page： 05DB04   2017.4

Influence of Fabrication Processes and Annealing Treatment on the Minority Carrier Lifetime of Silicon Nanowire Films Reviewed International journal

S. Kato, T. Yamazaki, Y. Kurokawa, S. Miyajima, and M. Konagai

Nanoscale Research Letters   Vol. 12   page： 242   2017.3

Post-annealing effects on the surface structure and carrier lifetime of evaporated BaSi2 films Reviewed International journal

K.O.Hara, C.T.Trinh, Y.Kurokawa, K.Arimoto,J.Yamanaka, K.Nakagawa, and N.Usami

Jpn. J. Appl. Phys.   Vol. 56   page： 04CS07   2017.3

Optical characterization of double-side-textured silicon wafer based on photonic nanostructures for thin-wafer crystalline silicon solar cells Reviewed International journal

T.Tayagaki, D. Furuta, O. Aonuma, I. Takahashi, Y. Hoshi, Y. Kurokawa, and N.Usami

Jpn. J. Appl. Phys.   Vol. 56   page： 04CS01   2017.1

Preferred Orientation of BaSi2 Thin Films Fabricated by Thermal Evaporation Reviewed International journal

K. O. Hara, C. T. Trinh, Y. Nakagawa, Y. Kurokawa, K. Arimoto, J. Yamanaka, K. Nakagawa, and N. Usami

JJAP Conf. Proc.   Vol. 5   page： 11202   2017.1

Fabrication of CuI/a-Si:H/c-Si Structure for Application to Hole-selective Contacts of Heterojunction Si Solar Cells Reviewed International journal

Gotoh Kazuhiro, Cui Min, Thanh Nguyen Cong, Koyama Koichi, Takahashi Isao, Kurokawa Yasuyoshi, Matsumura Hideki, Usami Noritaka

PROC. 2017 IEEE 44TH PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC)     page： 1765 - 1768   2017

Novel light trapping structure by alkaline etching using a Ge dot mask for crystalline Si solar cells Reviewed International journal

Atsushi Hombe, Yasuyoshi Kurokawa, Noritaka Usami

PROC. 2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)     page： 357 - 360   2016.11

Control of the electrical properties of BaSi <inf>2</inf> evaporated films for solar cell applications Reviewed International journal

Kosuke O. Hara, Cham Thi Trinh, Keisuke Arimoto, Junji Yamanaka, Kiyokazu Nakagawa, Yasuyoshi Kurokawa, Takashi Suemasu, Noritaka Usami

PROC. 2016 IEEE 43RD PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC)     page： 2786 - 2789   2016.11

Application of new doping techniques to solar cells for low temperature fabrication Reviewed International journal

Isao Takahashi, Yasuhiro Sujihara, Huang Yating, Jefferson A. Wibowo, Sergii Tutashkonko, Yasuyoshi Kurokawa, Noritaka Usami

PROC. 43RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE     page： 2522 - 2524   2016.11

Effects of Luminescent Coupling in Perovskite/c-Si Multijunction Solar Cells with Nanostructured Interlayer Reviewed International journal

T. Tayagaki, Y. Kurokawa, N. Usami

Proc. 32nd European Photovoltaic Solar Energy Conference and Exhibition     page： 205 - 208   2016.9

Structure and physical properties of stable isotopic amorphous carbon films Reviewed International journal

Y. Suzuki, Y. Kurokawa, T. Suzuki, K. Kanda, M. Niibe, M. Nakano, N. Ohtake, H. Akasaka

Diamond and Related Materials   Vol. 63   page： 115 - 119   2015.10

Flexible Cu(In,Ga)Se-2 solar cells fabricated using a polyimide-coated soda-lime glass substrate Reviewed International journal

Sadono Adiyudha, Hino Masashi, Ichikawa Mitsuru, Yamamoto Kenji, Kurokawa Yasuyoshi, Konagai Makoto, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 54 ( 8 ) page： 08KC16   2015.8

Control of valence band offset at CdS/Cu(In,Ga)Se-2 interface by inserting wide-bandgap materials for suppression of interfacial recombination in Cu(In,Ga)Se-2 solar cells Reviewed International journal

Nishimura Takahito, Hirai Yoshiaki, Kurokawa Yasuyoshi, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 54 ( 8 ) page： 08KC08   2015.8

Microstructural characterization of Cu2ZnSn(S,Se)(4) solar cells fabricated from nanoparticles Reviewed International journal

Zhang Yiwen, Suyama Naoki, Goto Masanori, Kuwana Jun, Sugimoto Kanta, Satake Tetsuo, Kurokawa Yasuyoshi, Yin Ming, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 54 ( 8 ) page： 08KC05   2015.8

Graphene transparent electrode for thin-film solar cells Reviewed International journal

Ishikawa Ryousuke, Kurokawa Yasuyoshi, Miyajima Shinsuke, Konagai Makoto

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 12, NO 6   Vol. 6   page： 777 - 780   2015.6

Improvement of Cu2ZnSn(S,Se)(4) solar cell efficiency by surface treatment Reviewed International journal

Furuta Kento, Sakai Noriyuki, Kato Takuya, Sugimoto Hiroki, Kurokawa Yasuyoshi, Yamada Akira

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS   Vol. 6   page： 704 - 707   2015.6

Fabrication of Cu(In,Ga)Se-2 solar cells with a single graded band profile Reviewed International journal

Nishimura Takahito, Kasashima Shunsuke, Hirai Yoshiaki, Kurokawa Yasuyoshi, Yamada Akira

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS   Vol. 252 ( 6 ) page： 1235 - 1238   2015.6

Theoretical and experimental investigation of the recombination reduction at surface and grain boundaries in Cu(In,Ga)Se2 solar cells by valence band control Reviewed International journal

Takahito Nishimura, Yoshiaki Hirai, Yasuyoshi Kurokawa, Akira Yamada

MRS Proceedings   Vol. 1771   page： 125 - 131   2015.4

Electrical characterization of Cu(In, Ga)Se-2 thin films peeled off from Mo-coated soda-lime glass substrate by AC Hall measurement Reviewed International journal

Umehara Takeshi, Iinuma Shohei, Sadono Adiyudha, Kurokawa Yasuyoshi, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 54 ( 1 ) page： 018001   2015.1

Silicon nanowire arrays passivated by Al2O3/TiO2 stack layers Reviewed International journal

Yasuharu Yamada, Yasuyoshi Kurokawa, Shinya Kato, Akira Yamada

PROC. 40TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE     page： 2903 - 2907   2014.10

Effect of Tapered Shape on Performance of Silicon Nanowire Solar Cells Reviewed International journal

Kurokawa Yasuyoshi, Kato Shinya, Konagai Makoto

NEXT GENERATION TECHNOLOGIES FOR SOLAR ENERGY CONVERSION V   Vol. 9178   page： 91780N   2014.10

Solution of Roll-over-Shaped J-V Characteristics of Ag(In,Ga)Se2 Solar Cells Reviewed International journal

T. Umehara, S. Iinuma, Y. Kurokawa, A. Yamada

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition     page： 1444 - 1447   2014.9

Diameter Reduction of Silicon Nanowires Using Ozone Oxidation Method for the Application to the All-Silicon Tandem Solar Cells Reviewed International journal

Y. Kurokawa, E. Ishida, Y. Yamada, S. Kato, A. Yamada

Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition     page： 298 - 302   2014.9

Silicon quantum dot superlattice solar cell structure including silicon nanocrystals in a photogeneration layer Reviewed International journal

Yamada Shigeru, Kurokawa Yasuyoshi, Miyajima Shinsuke, Konagai Makoto

NANOSCALE RESEARCH LETTERS   Vol. 9   page： 246   2014.5

Investigation of hydrogen plasma treatment for reducing defects in silicon quantum dot superlattice structure with amorphous silicon carbide matrix Reviewed International journal

Yamada Shigeru, Kurokawa Yasuyoshi, Miyajima Shinsuke, Konagai Makoto

NANOSCALE RESEARCH LETTERS   Vol. 9   page： 72   2014.2

Solid-phase crystallization of amorphous silicon nanowire array and optical properties Reviewed International journal

Ishikawa Ryousuke, Kato Shinya, Yamazaki Tatsuya, Kurokawa Yasuyoshi, Miyajima Shinsuke, Konagai Makoto

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 53 ( 2 ) page： 02BE09   2014.2

Numerical study of Cu(In,Ga)Se-2 solar cell performance toward 23% conversion efficiency Reviewed International journal

Hirai Yoshiaki, Kurokawa Yasuyoshi, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 53 ( 1 ) page： 012301   2014.1

Radical-assisted chemical doping for chemically derived graphene Reviewed International journal

Ishikawa Ryousuke, Ko Pil Ju, Bando Masashi, Kurokawa Yasuyoshi, Sandhu Adarsh, Konagai Makoto

NANOSCALE RESEARCH LETTERS   Vol. 8   page： 534   2013.12

Improvement of carrier diffusion length in silicon nanowire arrays using atomic layer deposition Reviewed International journal

Kato Shinya, Kurokawa Yasuyoshi, Miyajima Shinsuke, Watanabe Yuya, Yamada Akira, Ohta Yoshimi, Niwa Yusuke, Hirota Masaki

NANOSCALE RESEARCH LETTERS   Vol. 8   page： 361   2013.8

Observation of Light Scattering Properties of Silicon Nanowire Arrays Reviewed International journal

Y. Kurokawa, Y. Watanabe, S. Kato, Y. Yamada, A. Yamada, Y. Ohta, Y. Niwa, M. Hirota

Proc. IEEE 39TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)     page： 1880 - 1884   2013.6

Optical assessment of silicon nanowire arrays fabricated by metal-assisted chemical etching Reviewed International journal

Kato Shinya, Kurokawa Yasuyoshi, Watanabe Yuya, Yamada Yasuharu, Yamada Akira, Ohta Yoshimi, Niwa Yusuke, Hirota Masaki

NANOSCALE RESEARCH LETTERS   Vol. 8   page： 216   2013.5

Deposition of Ag(In,Ga)Se-2 Solar Cells by a Modified Three-Stage Method Using a Low-Temperature- Deposited Ag-Se Cap Layer Reviewed International journal

Zhang Xianfeng, Kobayashi Tsuyoshi, Kurokawa Yasuyoshi, Miyajima Shinsuke, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 52 ( 5 ) page： 055801   2013.5

Improvement of Electrical Properties of Silicon Quantum Dot Superlattice Solar Cells with Diffusion Barrier Layers Reviewed International journal

Yamada Shigeru, Kurokawa Yasuyoshi, Miyajima Shinsuke, Konagai Makoto

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 52 ( 4 ) page： 04CR02   2013.4

Laser Scribing of W-textured ZnO Substrates Using Green Laser Reviewed International journal

Ryousuke Ishikawa, Hidetoshi Wada, Yasuyoshi Kurokawa, Porponth Sichanugrist, Makoto Konagai

MRS Proceedings   Vol. 1493   page： 207 - 212   2013.2

Influence of Surface Recombination on the Performance of SiNW Solar Cells and the Preparation of a Passivation Film Reviewed International journal

Shinya Kato, Yuya Watanabe, Yasuyoshi Kurokawa, Akira Yamada, Yoshimi Ohta, Yusuke Niwa, Masaki Hirota

MRS Proceedings   Vol. 1512   page： Mrsf12-1512-ff17-05   2013.2

Numerical Simulation about Effects of Bandgap Grading in Cu(In,Ga)Se-2 with a Bandgap of 1.4 eV on Solar Cell Performance Reviewed International journal

Hirai Yoshiaki, Suzuki Ryotaro, Kurokawa Yasuyoshi, Yamada Akira

PROC. IEEE 39TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)     page： 3307 - 3309   2013

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO2 Matrix Reviewed International journal

Kurokawa Yasuyoshi, Kato Shinya, Watanabe Yuya, Yamada Akira, Konagai Makoto, Ohta Yoshimi, Niwa Yusuke, Hirota Masaki

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 51 ( 11 ) page： 11PE12   2012.11

Layer-by-Layer Assembled Transparent Conductive Graphene Films for Silicon Thin-Film Solar Cells Reviewed International journal

Ishikawa Ryousuke, Bando Masashi, Wada Hidetoshi, Kurokawa Yasuyoshi, Sandhu Adarsh, Konagai Makoto

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 51 ( 11 ) page： 11PF01   2012.11

Growth of Ag(In,Ga)Se-2 Films by Modified Three-Stage Method and Influence of Annealing on Performance of Solar Cells Reviewed International journal

Zhang Xianfeng, Kobayashi Tsuyoshi, Kurokawa Yasuyoshi, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 51 ( 10 ) page： 10NC05   2012.10

Numerical Approach to the Performance of Silicon Quantum Dots Superlattice Solar Cells Taking into Account the Quantum Effect Reviewed International journal

Kurokawa Yasuyoshi, Yamada Shigeru, Konagai Makoto

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 51 ( 10 ) page： 10NE09   2012.10

Improvement of the Band Profile of Cu(In,Ga)Se-2 Solar Cells with High-Ga Content Prepared Using a Five-Stage Method Reviewed International journal

Hirai Yoshiaki, Hidaka Yukiya, Kurokawa Yasuyoshi, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 51 ( 10 ) page： 10NC03   2012.10

High Temperature Preparation of Cu(In,Ga)Se2 Thin Films with High Ga Content Reviewed International journal

Y. Hirai, T. Kashima, Y. Kurokawa, A. Yamada

Proc. 27th European Photovoltaic Solar Energy Conference and Exhibition     page： 2321 - 2323   2012.9

Layer-by-layer assembled transparent conductive graphene films for solar cells application Reviewed International journal

Ryousuke Ishikawa, Masashi Bando, Yasuyoshi Kurokawa, Adarsh Sandhu, Makoto Konagai

MRS Proceedings   Vol. 1451   page： 75 - 81   2012.7

Effect of the Quantum Size Effect on the Performance of Solar Cells with a Silicon Nanowire Array Embedded in SiO2 Reviewed International journal

Yasuyoshi Kurokawa, Shinsuke Miyajima, Akira Yamada, Makoto Konagai

MRS Proceedings   Vol. 1439   page： 145 - 150   2012.6

Estimation of the Crystallinity of P-type Hydrogenated Nanocrystalline Cubic Silicon Carbide by Conductive Atomic Force Microscopy Reviewed International journal

Daisuke Hamashita, Yasuyoshi Kurokawa, Makoto Konagai

MRS Proceedings   Vol. 1426   page： 347 - 352   2012.5

Characterization of Ag(In, Ga)Se2/CdS interface in AIGS solar cell by HAADF-STEM measurement Reviewed International journal

Zhang Xianfeng, Kobayashi Tsuyoshi, Kurokawa Yasuyoshi, Miyajima Shinsuke, Yamada Akira

PROC. 37TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE     page： 149 - 152   2012.4

High thermostable and conductive niobium doped titanium oxide for the application to a diffusion barrier layer of silicon quantum dot superlattice solar cell structure Reviewed International journal

Shigeru Yamada, Yasuyoshi Kurokawa, Makoto Konagai

PROC. 37TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE     page： 2113 - 2116   2012.4

Metal-Assisted Chemical Etching Using Silica Nanoparticle for the Fabrication of a Silicon Nanowire Array Reviewed International journal

Kato Shinya, Watanabe Yuya, Kurokawa Yasuyoshi, Yamada Akira, Ohta Yoshimi, Niwa Yusuke, Hirota Masaki

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 51 ( 2 ) page： 02BP09   2012.2

Experimental and Theoretical Evaluation of Cu(In,Ga)Se-2 Concentrator Solar Cells Reviewed International journal

Hirai Yoshiaki, Nagashima Hiroshi, Kurokawa Yasuyoshi, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 51 ( 1 ) page： 014101   2012.1

Comparison of Interface Characterization between Ag(In,Ga)Se-2 and Cu(In,Ga)Se-2 Solar Cells by High-Angle-Annular Dark-Field Scanning Transmission Electron Microscopy Reviewed International journal

Zhang Xianfeng, Kobayashi Tsuyoshi, Kurokawa Yasuyoshi, Tashiro Yoshiyuki, Ohtsuka Masahiro, Yamada Tomoyuki, Yamada Akira

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 50 ( 12 ) page： 126603   2011.12

第三世代太陽電池研究開発の現状--シリコン量子ドットを用いた次世代太陽電池 (特集 次世代太陽電池開発の最前線) Reviewed

黒川 康良, 小長井 誠

ケミカルエンジニヤリング   Vol. 56 ( 3 ) page： 232 - 237   2011.3

Size-Controlled Silicon Quantum Dots Superlattice for Thin-Film Solar Cell Applications Reviewed International journal

Yasuyoshi Kurokawa, Shinsuke Miyajima, Akira Yamada, Makoto Konagai

MRS Proceedings   Vol. 1101   page： 1101-KK12-01   2011.2

Preparation of p-type Hydrogenated Nanocrystalline Cubic Silicon Carbide/n-type Crystalline Silicon Heterojunction Solar Cells by VHF-PECVD Reviewed International journal

Hamashita Daisuke, Kurokawa Yasuyoshi, Konagai Makoto

Energy Procedia   Vol. 10   page： 14 - 19   2011

Light management of a-Si:H solar cells using textured zinc oxide with adjustable haze values Reviewed International journal

Zhang Liping, Yunaz Ihsanul Afdi, Kasashima Shunsuke, Wada Hidetoshi, Hongsingthong Aswin, Krajangsang Taweewat, Kurokawa Yasuyoshi, Konagai Makoto

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS   Vol. 8 ( 10 ) page： 2998 - 3001   2011

Introduction of Oxygen into the Barrier Layers in a Si Quantum Dots Superlattice Using a-SiC Matrix to Improve the Solar Cell Performance Reviewed International journal

Y. Kurokawa, S. Yamada, S. Miyajima, A. Yamada, M. Konagai

Proc. 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion     page： 2748 - 2752   2010.9

Development of SiOx and SiOx/ SiO2 Superlattice for Application in Solar Cells Reviewed International coauthorship International journal

S. Ray, S. Mukhopadhyay, Y. Kurokawa, M. Konagai

Proc. 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion     page： 591 - 594   2010.9

Effects of oxygen addition on electrical properties of silicon quantum dots/amorphous silicon carbide superlattice Reviewed International journal

Kurokawa Yasuyoshi, Yamada Shigeru, Miyajima Shinsuke, Yamada Akira, Konagai Makoto

CURRENT APPLIED PHYSICS   Vol. 10 ( 3 ) page： S435 - S438   2010.5

HIGH OPEN-CIRCUIT VOLTAGE OXYGEN-CONTAINING SILICON QUANTUM DOTS SUPERLATTICE SOLAR CELLS Reviewed International journal

Yamada Shigeru, Kurokawa Yasuyoshi, Miyajima Shinsuke, Yamada Akira, Konagai Makoto

PROC. 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE     page： 766 - 769   2010

Effects of Nitrogen on the Electrical Properties of Si Quantum Dots Superlattice Using a-SiC Matrix Reviewed International journal

Y. Kurokawa, S. Tomita, S. Miyajima, A. Yamada, M. Konagai

Proc. 24th European Photovoltaic Solar Energy Conference     page： 398 - 403   2009.9

High-Efficiency Novel Solar Cells : Present Status of Third Generation Photovoltaics(<Special Issue>Future Prospects of Solar Cell Development) Reviewed

KONAGAI Makoto, KUROKAWA Yasuyoshi

Journal of the Japan Institute of Energy   Vol. 87 ( 3 ) page： 193 - 198   2008.3

OBSERVATION OF THE PHOTOVOLTAICS EFFECT FROM THE SOLAR CELLS USING SILICON QUANTUM DOTS SUPERLATTICE AS A LIGHT ABSORPTION LAYER Reviewed International journal

Kurokawa Yasuyoshi, Tomita Shigeki, Miyajima Shinsuke, Yamada Akira, Konagai Makoto

PROC. 33RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE     page： 858 - 863   2008

TiO2-Coated Transparent Conductive Oxide (SnO2:F) Films Prepared by Atmospheric Pressure Chemical Vapor Deposition with High Durability against Atomic Hydrogen. Reviewed

M. Kambe, K. Sato, D. Kobayashi, Y. Kurokawa, S. Miyajima, M. Fukawa, N. Taneda, A. Yamada, M. Konagai

Japanese Journal of Applied Physics   Vol. 45   page： L291 - L293   2006.3

Nanocrystalline silicon in amorphous silicon carbide matrix for Si quantum dots superlattice Reviewed International journal

Kurokawa Yasuyoshi, Miyajima Shinsuke, Yamada Akira, Konagai Makoto

PROC. 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion     page： 138 - 141   2006

超高効率太陽電池・関連材料の最前線 4.3 量子ドットを使った薄膜太陽電池

黒川康良, 山田繁, 小長井誠（ Role： Joint author）

シーエムシー出版  2011.8 

量子ドットエレクトロニクスの最前線　量子ドットを用いた第三世代太陽電池開発の最新動向と課題

黒川康良, 小長井誠（ Role： Sole author）

エヌティーエス出版  2011.3 

月刊ケミカルエンジニアリング　3. 第三世代太陽電池研究開発の現状　―シリコン量子ドットを用いた次世代太陽電池―

黒川康良, 小長井誠（ Role： Sole author）

化学工業社  2011.3 

太陽電池の基礎と応用 3.8.1 第3世代型太陽電池

黒川康良, 小長井誠（ Role： Joint author）

培風館  2010.7 

日本エネルギー学会誌　新概念高性能太陽電池の展開　―第３世代太陽電池開発の現状

（ Role： Sole author）

日本エネルギー学会  2008.3 

Improvement of Passivation Performance of Silicon Nano-crystal/Silicon Oxide Compound Layer by Hydrogen Plasma Treatment Reviewed

M. Matsumi, K. Gotoh, M. Wilde, Y. Kurokawa, K. Fukutani, N. Usami

Proc. 8th World Conference on Photovoltaic Energy Conversion (WCPEC-8)     page： 402 - 405   2022.9

Preparation and thermoelectric characterization of boron-doped silicon nanocrystals/silicon oxide multilayers Reviewed

K. Shibata, S. Kato, M. Kurosawa, K. Gotoh, S. Miyamoto, N. Usami, Y. Kurokawa

Ext. Abstr. 2022 International Conference on Solid State Devices and Materials (SSDM2022)     page： 147 - 148   2022.9

Performance enhancement of droplet-based electricity generator using a CYTOP intermediate layer Reviewed

H. Wang, Y. Kurokawa, K. Gotoh, S. Kato, S. Yamada, T. Itoh, N. Usami

Ext. Abstr. 2022 International Conference on Solid State Devices and Materials (SSDM2022)     page： 145 - 146   2022.9

Fabrication of Silicon Heterojunction Solar Cells with Light Trapping Structures Specialized for Near-Infrared Light by Nanoimprinting Reviewed

Y. Kimata, K. Gotoh, S. Miyamoto, S. Kato, Y. Kurokawa, N. Usami

Proc. 8th World Conference on Photovoltaic Energy Conversion (WCPEC-8)     page： 230 - 233   2022.9

ビーズミルによるシリコンスラッジのナノ粒子化および反射防止膜への展開 Reviewed

加藤 慎也, 黒川 康良, 曽我 哲夫

「次世代の太陽光発電システム」シンポジウム（日本太陽光発電学会学術講演会）予稿集   Vol. 2   page： PB-22 - PB-22   2022.6

硼素dopingがaSi:H/cSi界面・cSi表面欠陥に及ぼす影響のFET-TEGによる評価 Reviewed

林 豊, 後藤 和泰, 原 知彦, 神岡 武文, 尾崎 亮, 森村 元勇, 中村 京太郎, 黒川 康良, 宇佐美 徳隆, 大下 祥雄

「次世代の太陽光発電システム」シンポジウム（日本太陽光発電学会学術講演会）予稿集   Vol. 2   page： PB-10 - PB-10   2022.6

シリコン量子ドット積層膜の光導電率評価 Reviewed

熊谷 風雅, 後藤 和泰, 松尾 直紀, 山田 繁, 伊藤 貴司, 宇佐美 徳隆, 黒川 康良

「次世代の太陽光発電システム」シンポジウム（日本太陽光発電学会学術講演会）予稿集   Vol. 2   page： PB-20 - PB-20   2022.6

シリコンナノ結晶/酸化シリコン複合膜におけるパッシベーション性能の水素プラズマ処理圧力依存性 Reviewed

松見 優志, 後藤 和泰, ビルデ マーカス, 黒川 康良, 福谷 克之, 宇佐美 徳隆

「次世代の太陽光発電システム」シンポジウム（日本太陽光発電学会学術講演会）予稿集   Vol. 2   page： PB-8 - PB-8   2022.6

ボロンデルタドープp型水素化アモルファスシリコンと太陽電池応用 Reviewed

後藤 和泰, 尾崎 亮, 森村 元勇, 田中 亜紀, 伊関 良子, 中村 京太郎, 村松 和郎, 黒川 康良, 大下 祥雄, 宇佐美 徳隆

「次世代の太陽光発電システム」シンポジウム（日本太陽光発電学会学術講演会）予稿集   Vol. 2   page： PB-9 - PB-9   2022.6

太陽電池の高効率化に向けた革新的光閉じ込め構造作製手法の開発

黒川康良

新東技報   Vol. 39   page： 80 - 81   2022.1

TiOx/結晶Siヘテロ構造における電極製膜後のパッシベーション性能の定量的評価の検討 Reviewed

深谷 昌平, 後藤 和泰, 松井 卓矢, 齋 均, 黒川 康良, 宇佐美 徳隆

「次世代の太陽光発電システム」シンポジウム（日本太陽光発電学会学術講演会）予稿集   Vol. 1   page： 67 - 67   2021.10

Fabrication of BaSi2 Homojunction Diodes on Glass Substrates by Aluminum Induced Crystallization and Two-step Evaporation Method Reviewed

T. Yoshino, Y. Kurokawa, K. Gotoh, S. Miyamoto and N. Usami

Ext. Abstr. 2021 International Conference on Solid State Devices and Materials (SSDM 2021)     page： 341 - 342   2021.9

Study on the Morphology of Silicon Nanowire Arrays by Using Highly Doped Silicon Reviewed

H. Li, S. Kato, Y. Kurokawa, and T. Soga

Ext. Abstr. 2021 International Conference on Solid State Devices and Materials (SSDM 2021)     page： 311 - 312   2021.9

Realization of the Crystalline Silicon Solar Cell Using Nanocrystalline Transport Path in Ultra-thin Dielectrics for Reinforced Passivating Contact. Reviewed

R. Tsubata, K. Gotoh, T. Inoue, Y. Kurokawa, and N. Usami

Proc. 48th IEEE Photovoltaic Specialists     page： 908 - 911   2021.8

Fabrication of silicon-nanocrystals-embedded silicon oxide passivating contacts Reviewed

R. Tsubata, K. Gotoh, Y. Kurokawa, and N. Usami

Proc. 47th IEEE Photovoltaic Specialists Conference     page： 969 - 972   2021.1

Work function of indium oxide thin films on p-type hydrogenated amorphous silicon Reviewed

M. Semma, K. Gotoh, Y. Kurokawa, and N. Usami

Proc. 47th IEEE Photovoltaic Specialists Conference     page： 124 - 127   2021.1

Electrical properties of TiOx bilayer prepared by atomic layer deposition at different temperatures Reviewed

T. Mochizuki, K. Gotoh, Y. Kurokawa, and N. Usami

Proc. 46th IEEE Photovoltaics Specialist Conference     page： 1 - 3   2020.10

Passivation Mechanism of the High-performance Titanium Oxide Passivating Contacts on Crystalline Silicon Studied by Spectroscopic Ellipsometry Reviewed

K. Gotoh, H. Miura, A. Shimizu, Y. Kurokawa, and N. Usami

Ext. Abstr. 2020 International Conference on Solid State Devices and Materials (SSDM 2020)     page： 399 - 400   2020.9

Fabrication of TiOx thin film on Si using solution-based process and its passivation performance Reviewed

H. Luo, V. H. Nguyen, K. Gotoh, Y. Kurokawa, and N. Usami

Ext. Abstr. 2020 International Conference on Solid State Devices and Materials (SSDM 2020)     page： 403 - 404   2020.9

Size effect of silicon nanocrystals on Seebeck coefficient of phosphorus-doped Si nanocrystals/silicon oxide multilayers Reviewed

H. Kobayashi, S. Kato, M. Kurosawa, K. Gotoh, N. Usami, and Y. Kurokawa

Ext. Abstr. 2020 International Conference on Solid State Devices and Materials (SSDM 2020)     page： 355 - 356   2020.9

Effect of Hydrogen Plasma Treatment on Silicon Quantum Dot Multilayers Using Amorphous SiOx Reviewed

R. Akaishi, K. Gotoh, N. Usami, and Y. Kurokawa

Proc. 37th European PV Solar Energy Conference and Exhibition     page： 83 - 86   2020.9

Solute PEDOT:PSS as an Excellent Passivation Material of Si Substrate Reviewed

V. H. Nguyen, S. Kato, K. Gotoh, Y. Kurokawa, N. Usami

Ext. Abstr. SSDM 2019, International Conference on Solid State Devices and Materials     page： 149 - 150   2019.9

Preparation and thermoelectric characterization of phosphorous-doped silicon nanocrystals/silicon oxide multilayers Reviewed

H. Kobayashi, R. Akaishi, S. Kato, M. Kurosawa, N. Usami, and Y. Kurokawa

Ext. Abstr. SSDM 2019, International Conference on Solid State Devices and Materials     page： 819 - 820   2019.9

Application of light-trapping structure using Ge dot mask by alkaline etching to heterojunction solar cell Reviewed

A. Hombe, Y. Kurokawa, K. Gotoh, and N. Usami

Proc. 7th World Conference on Photovoltaic Energy Conversion (WCPEC-7)     page： 3097 - 3101   2018.11

Local structure of high performance TiOx passivating layer revealed by electron energy loss spectroscopy Reviewed

T. Mochizuki, K. Gotoh, A. Ohta, Y. Kurokawa, S. Miyazaki, T. Yamamoto, N. Usami

Proc. 7th World Conference on Photovoltaic Energy Conversion (WCPEC-7)     page： 3896 - 3899   2018.11

Deposition and Characterization of Si Quantum Dot Multilayers Prepared by Plasma Enhanced Chemical Vapor Deposition using SiH4 and CO2 Gases Reviewed

R. Akaishi, K Kitazawa, S. Ono, K. Gotoh, E. Ichihara, S. Kato, N. Usami and Y. Kurokawa

Proc. 7th World Conference on Photovoltaic Energy Conversion (WCPEC-7)     page： 2852 - 2856   2018.11

Development of the Passivation Layer for p-type CuI Thin Film Fabricated by the 2-step Method as the Novel Hole Selective Contact of Silicon Heterojunction Solar Cells Reviewed

M. Cui, K. Gotoh, Y. Kurokawa and N. Usami

Proc. 7th World Conference on Photovoltaic Energy Conversion (WCPEC-7)     page： 2118 - 2120   2018.11

Structural, Optical and Electrical Characterization of Heterojunction Rib-Si Solar Cells Reviewed

M. Konagai, R. Kondo, T. Otani, S. Takahashi, K. Sawano, Y. Ichikawa, K. Nakada, and Y. Kurokawa

Proc. 7th World Conference on Photovoltaic Energy Conversion (WCPEC-7)     page： 2032 - 2035   2018.11

Improving intrinsic silicon nanoparticle film by press treatment for use in p–i–n solar cells Reviewed

E. Ichihara, S. Kato, R. Akaishi, K. Gotoh, Y. Kurokawa, N. Kishi, and T. Soga

Proc. 7th World Conference on Photovoltaic Energy Conversion (WCPEC-7)     page： 317 - 320   2018.11

Fabrication of CuI/a-Si:H/c-Si Structure for Application to Hole-selective Contacts of Heterojunction Si Solar Cells Reviewed

K. Gotoh, M. Cui, N. C. Thanh, K. Koyama, I. Takahashi, Y. Kurokawa, H. Matsumura, and N. Usami

Proc. 44th IEEE Photovoltaics Specialist Conference     page： 1765 - 1768   2018.11

Stacks of a-SiOx:H/a-Si:H Passivation Layer for Low Parasitic Absorption and High Passivation in Silicon Heterojunction Solar Cells Reviewed

K. Gotoh, M. Cui, R. Akaishi, Y. Kurokawa, N. Usami

Proc. 35th European Photovoltaic Solar Energy Conference and Exhibition     page： 636 - 638   2018.9

Evaluation of Si Nanowire MOS Capacitor Using High-k Dielectric Materials Reviewed

R. Nezasa, Y. Kurokawa and N. Usami

Proc. 18th IEEE International Conference on Nanotechnology (IEEE-NANO)     page： 1 - 4   2018.7

Effect of novel sub-micron structure fabricated onto crystalline silicon on optical properties and minority carrier lifetime Reviewed

M. Sei, Y. Kurokawa, S. Kato, K. Gotoh, and N. Usami

Proc. Grand Renewable Energy 2018     page： OPV-10-1 - OPV-10-1   2018.6

Fabrication of a Si Nanowire MOS Capacitor for the Application to Energy Storage Devices Reviewed

R. Nezasa, Y. Kurokawa, and N. Usami

Ext. Abstr. SSDM 2017, International Conference on Solid State Devices and Materials     page： 1009 - 1010   2017.9

Novel light trapping structure by alkaline etching using a Ge dot mask for crystalline Si solar cells Reviewed

A. Hombe, Y. Kurokawa, and N.Usami

Proc. 16th IEEE International Conference on Nanotechnology (IEEE-NANO)     page： 357 - 360   2016.11

Control of the Electrical Properties of BaSi₂ Evaporated Films for Solar Cell Applications Reviewed

K. O. Hara, C. T. Trinh, K. Arimoto, J. Yamanaka, K. Nakagawa, Y. Kurokawa, T. Suemasu, and N. Usami

Proc. 43rd IEEE Photovoltaic Specialists Conference     page： 2786 - 2789   2016.11

Application of New Doping Techniques to Solar Cells for Low Temperature Fabrication Reviewed

I. Takahashi, Y. Sujihara, H. Yating, J. Wibowo, Y. Kurokawa, and N. Usami

Proc. 43rd IEEE Photovoltaic Specialists Conference     page： 2522 - 2524   2016.11

Surface Modification of Evaporated BaSi2 Films by In-situ Post-annealing and Amorphous Silicon Capping Reviewed

K. O. Hara, C. T. Trinh, Y. Kurokawa, K. Arimoto, J. Yamanaka, K. Nakagawa, N. Usami

Ext. Abstr. SSDM 2016, International Conference on Solid State Devices and Materials     page： 357 - 358   2016.9

Optical characterization of double-side textures using photonic nanostructures for thin-wafer c-Si solar cells Reviewed

T. Tayagaki, D. Furuta, O. Aonuma, I. Takahashi, Y. Hoshi, Y. Kurokawa, and N. Usami

Ext. Abstr. SSDM 2016, International Conference on Solid State Devices and Materials     page： 355 - 356   2016.9

Bandgap Tuning of Silicon Nanowire Arrays for the Application to All Silicon Tandem Solar Cells Reviewed

Y. Kurokawa, M. Yano, S. Miyajima, A. Yamada

Ext. Abstr. SSDM 2016, International Conference on Solid State Devices and Materials     page： 449 - 450   2016.9

Effects of Luminescent Coupling in Perovskite/c-Si Multijunction Solar Cells with Nanostructured Interlayer Reviewed

T. Tayagaki, Y. Kurokawa, and N. Usami

Proc. 32nd European PV Solar Energy Conference and Exhibition     page： 205 - 208   2016.6

Structure and physical properties of stable isotopic amorphous carbon films Reviewed

Y. Suzuki, Y. Kurokawa, T. Suzuki, K. Kanda, M. Niibe, M. Nakano, N. Ohtake, H. Akasaka

Proc. 9th International Conference on New Diamond and Nano Carbons     page： 115 - 119   2015.5

Theoretical and experimental investigation of the recombination reduction at surface and grain boundaries in Cu(In,Ga)Se2 solar cells by valence band control Reviewed

T. Nishimura, Y. Hirai, Y. Kurokawa, and A. Yamada

MRS Proceedings   Vol. 1771   page： 125 - 131   2015.4

Cu2ZnSn(S,Se)4 Thin-Film Solar Cells Prepared by Two-Step Annealing Reviewed

M. Goto, J. Kuwana, N. Suyama, Y. Zhang, Y. Kurokawa, and A. Yamada

Tech. Dig.. 6th World Conference on Photovoltaic Energy Conversion (WCPEC-6)     page： 461 - 462   2014.11

Optical Design for the Performance Improvement of Heterojunction Silicon Nanowire Solar Cells Reviewed

Y. Kurokawa, Y. Yamada, M. Yano, and A. Yamada

Tech. Dig.. 6th World Conference on Photovoltaic Energy Conversion (WCPEC-6)     page： 53 - 54   2014.11

Graphene Transparent Electrode with Low Contact Barrier in Silicon Thin-Film Solar Cells Reviewed

R. Ishikawa, Y. Kurokawa, S. Miyajima, and M. Konagai

Tech. Dig.. 6th World Conference on Photovoltaic Energy Conversion (WCPEC-6)     page： 231 - 232   2014.11

Suppression of Recombination at a CdS/CIGS Interface by Inserting Cu(In,Ga)3Se5 for Cu(In,Ga)Se2 Solar Cells Reviewed

T. Nishimura, Y. Hirai, Y. Kurokawa, and A. Yamada

Tech. Dig.. 6th World Conference on Photovoltaic Energy Conversion (WCPEC-6)     page： 313 - 314   2014.11

Flexible CIGS Solar Cells Fabricated Using a Polyimide-Coated Soda-Lime Glass Substrate Reviewed

A. Sadono, M. Hino, M. Ichikawa, K. Yamamoto, Y. Kurokawa, M. Konagai, and A. Yamada

Tech. Dig.. 6th World Conference on Photovoltaic Energy Conversion (WCPEC-6)     page： 351 - 352   2014.11

Characterization of Cu2ZnSn(S,Se)4 Solar Cells Annealed under Different Atmospheres Reviewed

Y. Zhang, N. Suyama, M. Goto, J. Kuwana, K. Sugimoto, T. Satake, Y. Kurokawa, M. Yin, and A. Yamada

Tech. Dig.. 6th World Conference on Photovoltaic Energy Conversion (WCPEC-6)     page： 377 - 378   2014.11

Silicon nanowire arrays passivated by Al2O3/TiO2 stack layers Reviewed

Y. Yamada, Y. Kurokawa, S. Kato, and A. Yamada

Proc. 40th IEEE Photovoltaic Specialists Conference     page： 2903 - 2907   2014.10

Solution of Roll-over-Shaped J-V Characteristics of Ag(In,Ga)Se2 Solar Cells Reviewed

Takeshi Umehara, Shohei Iinuma, Yasuyoshi Kurokawa, Akira Yamada

Proc. 29th European PV Solar Energy Conference and Exhibition     page： 1444 - 1447   2014.9

Diameter Reduction of Silicon Nanowires Using Ozone Oxidation Method for the Application to the All-Silicon Tandem Solar Cells Reviewed

Y. Kurokawa, E. Ishida, Y. Yamada, S. Kato, and A. Yamada

Proc. 29th European PV Solar Energy Conference and Exhibition     page： 298 - 302   2014.9

Cu2ZnSn(S,Se)4 Thin-Film Solar Cells Prepared by Ultrasonic Spray Reviewed

J. Kuwana, M. Goto, N. Suyama, Y. Zhang, Y. Kurokawa, and A. Yamada

Proc. 19th International Conference on Ternary and Multinary Compounds     page： P4-082 - P4-082   2014.9

Improvement of Cu2ZnSn(S,Se)4 solar cell efficiency by surface treatment Reviewed

K. Furuta, N. Sakai, T. Kato, H. Sugimoto, Y. Kurokawa, and A. Yamada

Proc. 19th International Conference on Ternary and Multinary Compounds     page： Wed-O-3A - Wed-O-3A   2014.9

Graphene Transparent Electrode for Thin-Film Solar Cells Reviewed

R. Ishikawa, Y. Kurokawa, S. Miyajima, and M. Konagai

Proc. 19th International Conference on Ternary and Multinary Compounds     page： P4-054 - P4-054   2014.9

Solution of Roll-over-Shaped J-V Characteristics of Ag(In,Ga)Se2 Solar Cells Reviewed

T. Nishimura, S. Kasashima, Y. Hirai, Y. Kurokawa, and A. Yamada

Proc. 19th International Conference on Ternary and Multinary Compounds     page： Thu-O-2A - Thu-O-2A   2014.9

Observation of Light Scattering Properties of Silicon Nanowire Arrays Reviewed

Y. Kurokawa, Y. Watanabe, S. Kato, Y. Yamada, and A. Yamada

Proc. 39th IEEE Photovoltaic Specialists Conference     page： 1880 - 1884   2014.2

Numerical Simulation about Effects of Bandgap Grading in Cu(In,Ga)Se2 with a Bandgap of 1.4 eV on Solar Cell Reviewed

Y. Hirai, R. Suzuki, Y. Kurokawa, and A. Yamada

Proc. 39th IEEE Photovoltaic Specialists Conference     page： 3307 - 3309   2014.2

Evaluation of Effective Lifetime of Silicon Nanowire Arrays Reviewed

Y. Yamada, Y. Kurokawa, S. Kato, and A. Yamada

Tech. Dig. 23rd International Photovoltaic Science & Engineering Conference (PVSEC-23)     page： 5-O-10-1 - 5-O-10-4   2013.10

Improvement of Effective Lifetime by Surface Passivation of Ge Wafers using Al2O3 Films Reviewed

N. Kaneko, K. Nakada, Y. Kurokawa, and A. Yamada

Tech. Dig. 23rd International Photovoltaic Science & Engineering Conference (PVSEC-23)     page： 1-P-62-1 - 1-P-62-4   2013.10

Investigation of silicon nanowire solar cells by using two-dimensional device simulation Reviewed

S. Kato, Y. Kurokawa, S. Miyajima, A. Yamada, and M. Konagai

Tech. Dig. 23rd International Photovoltaic Science & Engineering Conference (PVSEC-23)     page： 5-P-69-1 - 5-P-69-4   2013.10

Influence of Surface Recombination on the Performance of SiNW Solar Cells and the Preparation of a Passivation Film Reviewed

S. Kato, Y. Watanabe, Y. Kurokawa, A. Yamada, Y. Ohta, Y. Niwa, and M. Hirota

Proc. Materials Research Society Symposium Fall Meeting   Vol. 1512   page： 5   2013.2

Laser Scribing of W-textured ZnO Substrates Using Green Laser Reviewed

R. Ishikawa, H. Wada, Y. Kurokawa, P. Sichanugrist, and M Konagai

Proc. Materials Research Society Symposium Fall Meeting   Vol. 1493   page： 232 - 237   2013.2

Improvement of Electrical Properties of Silicon Quantum Dots Superlattice Solar Cells with a Dopant Diffusion Barrier Layer Reviewed

S. Yamada, Y. Kurokawa, S. Miyajima, and M. Konagai

Ext. Abstr. 2012 International Conference on Solid State Devices and Materials (SSDM 2012)     page： 999 - 1000   2012.9

Direct Bonding using a-Si:H Thin Films for the Fabrication of Chalcopyrite Tandem Solar Cells Reviewed

S. Oonishi, Y. Kurokawa, and A. Yamada

Ext. Abstr. 2012 International Conference on Solid State Devices and Materials (SSDM 2012)     page： 983 - 984   2012.9

High Temperature Preparation of Cu(In,Ga)Se2 Thin Films with High Ga Content Reviewed

Y. Hirai, T. Kashima, Y. Kurokawa, and A. Yamada

Proc. 27th European Photovoltaic Solar Energy Conference     page： 2321 - 2323   2012.9

Theoretical Evaluation of Effect of Cu(In, Ga)Se2 Band Profile on Solar Cell Performance Taking into Account the Novel Absorption Coefficient Reviewed

Y. Hirai, Y. Kurokawa, and A. Yamada

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2012 (TOP-PV 2012)     page： 107 - 108   2012.8

Improvement of Ag(In, Ga)Se2 Solar Cell Performance by High-Temperature Deposition Method Reviewed

X. Zhang, T. Umehara, Y. Kurokawa, and A. Yamada

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2012 (TOP-PV 2012)     page： 109 - 110   2012.8

Fabrication of Cu2ZnSn(SSe)4 Solar Cells by Printing of Nanoparticle Precursor Ink Reviewed

A. Yamada, Y. Zhang, T. Yoshihara, N. Suyama, and Y. Kurokawa

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2012 (TOP-PV 2012)     page： 28 - 31   2012.8

Recent Progress in Silicon Quantum Dots Superlattice Solar Cells Reviewed

S. Yamada, Y. Kurokawa, S. Miyajima, and M. Konagai

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2012 (TOP-PV 2012)     page： 133 - 134   2012.8

Numerical Approach to the Performance of Silicon Nanowire Solar Cells with Taking the Quantum Size Effect in Account Reviewed

Y. Kurokawa, S. Kato, Y. Watanabe, A. Yamada, M. Konagai, Y. Ohta, Y. Niwa, and M. Hirota

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2012 (TOP-PV 2012)     page： 137 - 138   2012.8

Preparation of Passivation Film-Embedded Silicon Nanowire Arrays using Atomic Layer Deposition and Plasma Enhanced Chemical Vapor Deposition Reviewed

S. Kato, Y. Watanabe, Y. Kurokawa, A. Yamada, Y. Ohta, Yusuke Niwa, and Masaki Hirota

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2012 (TOP-PV 2012)     page： 139 - 140   2012.8

p-type Hydrogenated Nanocrystalline Cubic Silicon Carbide Emitter for n-type Crystalline Silicon Heterojunction Solar Cells Reviewed

D. Hamashita, Y. Kurokawa, S. Miyajima, and M. Konagai

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2012 (TOP-PV 2012)     page： 67 - 68   2012.8

Laser Scribing of a-Si:H Solar Cells Fabricated on W-textured Substrates Reviewed

R. Ishikawa, H. Wada, Y. Kurokawa, P. Sichanugrist, and M. Konagai

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2012 (TOP-PV 2012)     page： 93 - 94   2012.8

Layer-by-layer Assembled Transparent Conductive Graphene Films for Solar Cells Application Reviewed

R. Ishikawa, Y. Kurokawa, A. Sandhu, and M. Konagai

Proc. Materials Research Society Symposium Spring Meeting   Vol. 1451   page： 75 - 81   2012.7

Effect of the Quantum Size Effect on the Performance of Solar Cells with a Silicon Nanowire Array Embedded in SiO2 Reviewed

Y. Kurokawa, S. Kato, Y. Watanabe, A. Yamada, M. Konagai, Y. Ohta, Y. Niwa, and M. Hirota

Proc. Materials Research Society Symposium Spring Meeting   Vol. 1439   page： 145 - 150   2012.6

Estimation of the Crystallinity of p-type Hydrogenated Nanocrystalline Cubic Silicon Carbide by Conductive Atomic Force Microscopy Reviewed

D. Hamashita, Y. Kurokawa, and M. Konagai

Proc. Materials Research Society Symposium Spring Meeting   Vol. 1426   page： 347 - 352   2012.5

Preparation of p-type Hydrogenated Nanocrystalline Cubic Silicon Carbide / n-type Crystalline Silicon Heterojunction Solar Cells by VHF-PECVD Reviewed

D. Hamashita, Y. Kurokawa, and M. Konagai

Proc. E-MRS ICAM IUMRS 2011 Spring Meeting     page： 14 - 19   2012.5

Characterization of Ag(In, Ga)Se2/CdS interface in AIGS solar cell by HAADF-STEM measurement Reviewed

Z. Xianfeng, T. Kobayashi, Y. Kurokawa, and A. Yamada

Proc. 37th IEEE Photovoltaic Specialist Conference     page： 149 - 152   2012.4

Effects of the Deposition Conditions of p-type Hydrogenated Nanocrystalline Cubic Silicon Carbide on n-type Crystalline Silicon Heterojunction Solar Cell Performance Reviewed

D. Hamashita, Y. Kurokawa, and M. Konagai

Proc. 37th IEEE Photovoltaic Specialist Conference     page： 1433 - 1436   2012.4

High Thermostable and Conductive Niobium Doped Titanium Oxide for the Application to a Diffusion Barrier Layer of Silicon Quantum Dot Superlattice Solar Cell Structure Reviewed

S. Yamada, Y. Kurokawa, and M. Konagai

Proc. 37th IEEE Photovoltaic Specialist Conference     page： 2113 - 2116   2012.4

Silicon Nanowire Solar Cells Prepared by Metal Assisted Chemical Etching with Silica Nanoparticles Invited Reviewed

Y. Kurokawa, S. Kato, Y. Watanabe, A. Yamada, M. Konagai, Y. Ohta, Y. Niwa, and M. Hirota

Proc. 8th Workshop on the Future Direction of Photovoltaics     page： 111 - 115   2012.3

Direct Bonding of ZnO Thin Films for the Fabrication of Chalcopyrite Tandem Solar Cells Reviewed

Y. Nakajima, Y. Kurokawa, and A. Yamada

Tech. Dig. 21st International Photovoltaic Science and Engineering Conference (PVSEC-21)     page： 2D-3P-20-1 - 2D-3P-20-2   2011.11

High Transparent and Conductive Nb-doped TiO2 films by RF Sputtering for the Application to Si-based Thin film Solar Cells Reviewed

D. Hamashita, Y. Kurokawa, and M. Konagai

Tech. Dig. 21st International Photovoltaic Science and Engineering Conference (PVSEC-21)     page： 4D-2P-09-1 - 4D-2P-09-2   2011.11

Preparation of Al2O3-embbeded Silicon Nanowire Arrays using Atomic Layer Deposition Reviewed

S. Kato, Y. Watanabe, Y. Kurokawa, and A. Yamada

Tech. Dig. 21st International Photovoltaic Science and Engineering Conference (PVSEC-21)     page： 5C-5O-02-1 - 5C-5O-02-2   2011.11

Numerical Approach to the Performance of Silicon Quantum Dots Superlattice Solar Cells Taking into Account the Quantum Effect Reviewed

Y. Kurokawa, S. Yamada, and M. Konagai

Tech. Dig. 21st International Photovoltaic Science and Engineering Conference (PVSEC-21)     page： 5C-5O-04-1 - 5C-5O-04-2   2011.11

Improvement of the Band Profile of Cu(In, Ga)Se2 Solar Cells with High-Ga Content Prepared by a Five-stage Method Reviewed

Y. Hirai, Y. Kurokawa, and A. Yamada

Tech. Dig. 21st International Photovoltaic Science and Engineering Conference (PVSEC-21)     page： 1B-3O-03-1 - 1B-3O-03-2   2011.11

High Purity Thiourea Aqueous Solution for Effective Deposition of the Zn(S,O,OH) Buffer Layer in Cu(In1-xGax)Se2 Solar Cells Reviewed

N. Hirata, S. Ogama, S. Nakahara, Y. Kurokawa, and A. Yamada

Tech. Dig. 21st International Photovoltaic Science and Engineering Conference (PVSEC-21)     page： 5B-3O-02-1 - 5B-3O-02-2   2011.11

Preparation of a Diameter-controlled Silicon Nanowire Array by Metal Assisted Chemical Etching using Silica Nanoparticles (MACES) Reviewed

S. Kato, Y. Watanabe, Y. Kurokawa, and A. Yamada

Proc. 2011 International Conference on Solid State Devices and Materials (SSDM 2011)     page： 1389 - 1390   2011.9

Preparation of a Diameter-controlled Silicon Nanowire Array by Metal Assisted Chemical Etching using Silica Nanoparticles (MACES) Reviewed

S. Kato, Y. Watanabe, Y. Kurokawa, A. Yamada, Y. Ohta, Y. Niwa, M. Hirota

Ext. Abstr. 2011 International Conference on Solid State Devices and Materials (SSDM 2011)     page： 1389 - 1390   2011.9

High Open-Circuit Voltage Oxygen-Containing Si Quantum Dots Superlattice Solar Cells Reviewed

S. Yamada, Y. Kurokawa, S. Miyajima, A. Yamada, and M. Konagai

Proc. 35th IEEE Photovoltaic Specialists Conference     page： 766 - 769   2010.11

Application of Silicon Quantum Dots to the Third Generation Photovoltaics Reviewed

Y. Kurokawa

Proc. 2nd Japanese-Russian Young Scientists Conference on Nano-materials and Nano-technology     page： 12 - 12   2010.9

Development of SiOx and SiOx/SiO2 Superlattice for Application in Solar Cells Reviewed

S. Ray, S. Mukhopadhyay, Y. Kurokawa, and M. Konagai

Proc. WCPEC-5 & the 25th European Photovoltaic Solar Energy Conference     page： 591 - 594   2010.9

Introduction of Oxygen into the Barrier Layers in a Si Quantum Dots Superlattice Using a-SiC Matrix to Improve the Solar Cell Performance Reviewed

Y. Kurokawa, S. Yamada, S. Miyajima, A. Yamada, and M. Konagai

Proc. WCPEC-5 & the 25th European Photovoltaic Solar Energy Conference     page： 2748 - 2752   2010.9

Preparation of a Si Quantum Wire (SiQW) for the Next Generation Solar Cells Reviewed

S. Kato, Y. Watanabe, Y. Kurokawa, A. Yamada, and M. Konagai

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2010 (Top-PV2010)     page： 63 - 64   2010.8

High Open-Circuit Voltage Oxygen-Containing Silicon Quantum Dots Superlattice Solar Cells Reviewed

S. Yamada, Y. Kurokawa, S. Miyajima, A. Yamada, and M. Konagai

Proc. Korea-Japan Top University League Workshop on Photovoltaics 2010 (Top-PV2010)     page： 81 - 82   2010.8

Effects of Oxygen Addition on Electrical Properties of Silicon Quantum Dots/Amorphous Silicon Carbide Superlattice Reviewed

Y. Kurokawa, S. Yamada, S. Miyajima, A. Yamada, and M. Konagai

Tech. Dig. the 19th International Photovoltaic Science and Engineering Conference     page： 14 - 15   2009.11

Effects of Nitrogen on the Electrical Properties of Si Quantum Dots Superlattice using a-SiC Matrix Reviewed

Y. Kurokawa, S. Tomita, S. Miyajima, A. Yamada, and M. Konagai

Proc. the 24th European Photovoltaic Solar Energy Conference     page： 398 - 403   2009.9

Observation of the Photovoltaic Effect from the Solar Cells using Si Quantum Dots Superlattice as a Light Absorption Layer Reviewed

Y. Kurokawa, S. Tomita, S. Miyajima, A. Yamada, and M. Konagai

Proc. the 33rd IEEE Photovoltaic Specialist Conference   Vol. 211   page： 1 - 6   2009.5

Fabrication of p-i-n Structure using Si Quantum Dots/Amorphous Si Carbide Superlattice Reviewed

Y. Kurokawa, S. Tomita, S. Miyajima, A. Yamada, and M. Konagai

Tech. Dig. the 18th International Photovoltaic Science and Engineering Conference     page： 6-31 - 6-31   2009.1

All Si Tandem Solar Cell Application of Si Quantum Dots/Amorphous Si Carbide Superlattice Reviewed

Y. Kurokawa, S. Tomita, S. Miyajima, A. Yamada, and M. Konagai

Proc. the 1st Global COE International Forum     page： 19 - 20   2008.12

Size-controlled Silicon Quantum Dots Superlattice for Thin-film Solar Cell Applications Invited Reviewed

Y. Kurokawa, S. Miyajima, A. Yamada, and M. Konagai

Proc. Materials Research Society Symposium Spring Meeting   Vol. 1101   page： 1201 - 1211   2008.2

Hydrogen Diffusion Process for Size-controlled Silicon Quantum Dots Superlattice Reviewed

Y. Kurokawa, Shigeki Tomita, S. Miyajima, A. Yamada, and M. Konagai

Tech. Dig. the 17th International Photovoltaic Science and Engineering Conference     page： 524 - 525   2007.12

Preparation of Nanocrystalline Silicon in Amorphous SiC Matrix for Si Quantum Dots Superlattice Reviewed

Y. Kurokawa, S. Tomita, S. Miyajima, A. Yamada, and M. Konagai

Proc. the 22nd European Photovoltaic Solar Energy Conference     page： 233 - 236   2007.9

Nano-crystalline Si Dot Superlattice Invited Reviewed

Y. Kurokawa, S. Tomita, S. Miyajima, A. Yamada, M. Konagai

Proc. the 3rd Workshop on the Future Direction of Photovoltaics     page： 82 - 84   2007.3

Preparation of Nanocrystalline Silicon in Amorphous SiC Matrix for Si Quantum Dots Superlattice Reviewed

Y. Kurokawa, S. Miyajima, A. Yamada, and M. Konagai

Proc. IEEE the 4th World Conference on Photovoltaic Energy Conversion     page： 138 - 141   2007.1

TiO2-Coated Textured SnO2:F Films for Thin Film Si Solar Cells Fabricated by Hot Wire CVD Reviewed

M. Kambe, Y. Kurokawa, K. Sato, D. Kobayashi, S. Miyajima, N. Taneda, A. Yamada, and M. Konagai

Proc. Renewable Energy 2006     page： 392 - 394   2006.10

TiO2-Coated TCO (SnO2:F) Films Prepared by AP-CVD with High Durability against Hydrogen Radicals Reviewed

M. Kambe, K. Sato, Y. Kurokawa, S. Miyajima, M. Fukawa, N. Taneda, and M. Konagai

Tech. Dig. 15th International Photovoltaic Science & Engineering Conference (PVSEC-15)     page： 563 - 564   2005.10

Ab-initio Method of Designing Artificial Quantum Bits Reviewed

S. Higashijima, Y. Kurokawa, Y. Tsuchiya, M. Okamoto, H. Mizuta, and S. Oda

Proc. 15th Workshop on Modeling and Simulation of Electron Devices     page： 21 - 22   2005.7

Atomistic Simulation of Quantum Transport in Nanoscale Silicon Transistors Reviewed

Y. Kurokawa, S. Higashijima, Y. Tsuchiya, M. Okamoto, H. Mizuta, and S. Oda

Proc. 15th Workshop on Modeling and Simulation of Electron Devices     page： 19 - 20   2005.7

Ab-initio Calculations of Electronic States in Nano-crystalline Si Quantum Dots Reviewed

S. Higashijima, Y. Kurokawa, Y. Tsuchiya, M. Okamoto, H. Mizuta, and S. Oda

Proc. IEEE Silicon Nanoelectronics Workshop     page： 134 - 135   2005.6

Electric States and Quantum Transport in Si Nanorod Transistors Reviewed

Y. Kurokawa, S. Higashijima, Y. Tsuchiya, M. Okamoto, H. Mizuta, and S. Oda

Proc. IEEE Silicon Nanoelectronics Workshop     page： 136 - 137   2005.6

Improvement of nano-texture uniformity formed on crystalline silicon surface by anisotropic alkaline etching for perovskite/silicon tandem solar cells International conference

Hiroto Yamaguchi, Shohei Fukaya, Yasuyoshi Kurokawa, Noritaka Usami

35th International Photovoltaic Science and Engineering Conference  2024.11.12 

Investigation of deposition conditions for multilayer passivation thin films using Bayesian optimization with hydrogen concentration as an index International conference

Soma Kondo, Yasuyoshi Kurokawa, Kazuhiro Gotoh, Kentaro Kutukake, Noritaka Usami

35th International Photovoltaic Science and Engineering Conference  2024.11.12 

Evaluation of Thermoelectric Performance of Mg2Si Synthesized Using Silicon Extracted from Waste PV Modules International conference

Katsumichi Hanzawa, Shinya Kato, Michihiro Kusumoto, Kengo Yamanaka, Taisuke Doi, Yasuyoshi Kurokawa, Noritaka Usami, Takashi Itoh

35th International Photovoltaic Science and Engineering Conference  2024.11.12 

Fabrication of Tilted Mg2Si/Metal Multilayer Composite Modules by a New Method and Evaluation of the Thermoelectric Power Generation Performance International conference

Tomohiro Kusumoto, Yasuyoshi Kurokawa, Noritaka Usami and Takashi Itoh

World PM2024  2024.10.16 

Development of porous silicon nanowires with conductive paths and large specific surface area and application to lithium-ion batteries International conference

Shinya Kato, Habin Li, Yosuke Ishii, Yasuyoshi Kurokawa and Tetsuo Soga

ECS PRiME 2024  2024.10.9 

Hydrogen and point defect introduction into 4H-SiC by plasma treatment International conference

Tong Li, Hitoshi Sakane, Shunta Harada, Yasuyoshi Kurokawa, Masashi Kato

ICSCRM 2024  2024.9.30 

ポリ乳酸樹脂隔壁型を用いて作製したMg2Si/Ni傾斜積層素子によって構成される熱電発電モジュールの発電性能評価

楠本 倫大，黒川 康良，宇佐美 徳隆，伊藤 孝至

第21回日本熱電学会学術講演会  2024.9.25  日本熱電学会

Understanding Interface States in TiOx/Si Heterostructure by Analyzing Temperature Dependence of Effective Carrier Lifetime International conference

Yuto Michishita, Shohei Fukaya, Kazuhiro Gotoh, Yasuyoshi Kurokawa and Noritaka Usami

41st European Photovoltaic Solar Energy Conference and Exhibition  2024.9.24 

シリコン界面のパッシベーションに及ぼすPEDOT:PSSの微細構造の影響

山中 健吾、黒川 康良、加藤 正史、曾我 哲夫、加藤 慎也

第85回応用物理学会秋季学術講演会  2024.9.20  応用物理学会

ナノ結晶シリコン/酸化シリコン複合膜の電気的特性の組成依存性

高木 香、荒田 朝基、黒川 康良、増田 淳、宇佐美 徳隆、後藤 和泰

第85回応用物理学会秋季学術講演会  2024.9.20  応用物理学会

Fabrication of Planar Thermoelectric Generators using Phosphorus-doped Silicon Nanocrystals/Amorphous Silicon Composite Films International conference

Y. Kurokawa, K. Shibata, S. Kato, M. Kurosawa, S. Miyamoto, T. Itoh, N. Usami

International Conference on Solid state devices and materials 2024  2024.9.2 

ナノ結晶シリコン/酸化シリコン複合膜の組成制御

高木 香，荒田 朝基，黒川 康良，増田 淳，宇佐美 徳隆，後藤 和泰

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  2024.7.11  日本太陽光発電学会

廃棄太陽光パネルから抽出したシリコンを用いた熱電変換Mg2Si 化合物の作製

半澤 克道，加藤 慎也，楠本 倫大，山中 健吾，土居 大亮，黒川 康良，宇佐美 徳隆，伊藤 孝至

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  2024.7.11  日本太陽光発電学会

原子層堆積法により作製した酸化チタンへのNb 添加による電界効果パッシベーションの向上

深谷 昌平，後藤 和泰，黒川 康良，宇佐美 徳隆

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  2024.7.11  日本太陽光発電学会

異方性アルカリエッチングで結晶シリコン表面に形成したナノテクスチュアの均一性向上

山口 大翔，黒川 康良，宇佐美 徳隆

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  2024.7.11  日本太陽光発電学会

太陽電池応用に向けたシリコンナノシートの作製

大河内 創太，宮本 聡，加藤 慎也，宇佐美 徳隆，黒川 康良

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  2024.7.11  日本太陽光発電学会

水素濃度を指標としたベイズ最適化を用いた多層パッシベーション膜の製膜条件探索

近藤 蒼馬，黒川 康良，後藤 和泰，沓掛 健太朗，宇佐美 徳隆

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  2024.7.11  日本太陽光発電学会

シリコンナノ結晶/酸化シリコン複合膜におけるi-a-Si:H層挿入によるブリスタリングの抑制

水谷 和嗣，後藤 和泰，立花 福久，黒川 康良，宇佐美 徳隆

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  2024.7.11  日本太陽光発電学会

TiOx/結晶Siヘテロ構造の実効少数キャリアライフタイムの温度依存性とそのパッシベーション機構

道下 悠登，後藤 和泰，深谷 昌平，黒川 康良，宇佐美 徳隆

第21回「次世代の太陽光発電システム」シンポジウム（第4回日本太陽光発電学会学術講演会）  2024.7.11  日本太陽光発電学会

ナノインプリント法を用いたSiヘテロ接合太陽電池用光閉じ込め構造の実装 Invited

黒川 康良，伊関 良子, 後藤 和泰，宮本 聡，尾崎 亮, 中村 京太郎, 大下 祥雄, 宇佐美 徳隆

次世代太陽電池セル・モジュール分科会/WinPVJ分科会 2024年度第1回研究会  2024.7.10  日本太陽光発電学会次世代太陽電池セル・モジュール分科会/WinPVJ分科会

Fabrication of tilted Mg2Si/Ni multilayer composite thermoelectric elements using PLA molds and power generation evaluation International conference

Tomohiro Kusumoto, Yasuyoshi Kurokawa, Noritaka Usami and Takashi Itoh

40th International Conference on Thermoelectrics  2024.7.1 

Fabrication and Performance Evaluation of Thermoelectric Mg2Si Compounds Synthesized Using Silicon Extracted from waste PV modules International conference

Katsumichi Hanzawa, Shinya Kato, Kengo Yamanaka, Taisuke Doi, Yasuyoshi Kurokawa, Noritaka Usami, and Takashi Itoh

40th International Conference on Thermoelectrics  2024.7.1 

Enhancement of Near-infrared Light Absorption by Nanoimprinted Light Trapping Structure Implemented into Si Heterojunction Solar Cells International conference

Yasuyoshi Kurokawa, Yoshiko Iseki, Kazuhiro Gotoh, Satoru Miyamoto, Ryo Ozaki, Kyotaro Nakamura, Yoshio Ohshita, Noritaka Usami

52nd IEEE Photovoltaic Specialists Conference  2024.6.11 

Improvement for passivation performance of TiOx/SiOy/c-Si heterostructures by capping with Atomic-Layer-Deposited Nb doped TiOx Layer International conference

Shohei Fukaya, Kazuhiro Gotoh, Yasuyoshi Kurokawa and Noritaka Usami

52nd IEEE Photovoltaic Specialists Conference  2024.6.10 

4H-SiC へのプラズマ処理による水素導入

リ トウ, 坂根仁, 原田俊太, 黒川康良, 加藤正史

第71回応用物理学会春季学術講演会  2024.3.23  応用物理学会

原子層堆積法で作製したTiOx:Nb層の導入によるTiOx/SiOy/c-Siヘテロ構造のパッシベーション性能の向上

深谷昌平, 後藤和泰, 黒川康良, 宇佐美徳隆

第71回応用物理学会春季学術講演会  2024.3.24  応用物理学会

CYTOP/BaTiO3ナノ粒子複合膜を用いた薄膜系直流水滴発電デバイス

王海涛, 黒川康良, 王嘉, 宇佐美徳隆

第71回応用物理学会春季学術講演会  2024.3.24  応用物理学会

Pドープ/Bドープ ナノ結晶Si/アモルファスSi複合薄膜の熱電デバイス応用

柴田啓介, 加藤慎也, 黒澤昌志, 後藤和泰, 宮本聡, 伊藤孝至, 宇佐美徳隆, 黒川康良

第71回応用物理学会春季学術講演会  2024.3.24  応用物理学会

ベイズ最適化と水素濃度グルーピングを活用した多層パッシベーション層の製膜条件探索

近藤 蒼馬, 沓掛 健太朗, 後藤 和泰, 黒川 康良, 宇佐美 徳隆

応用物理学会 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４回研究会  2024.3.7 

原子層堆積法により作製したNbドープTiOx層の新規パッシベーション膜への応用の検討

深谷 昌平, 後藤 和泰, 黒川 康良, 宇佐美 徳隆

応用物理学会 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４回研究会  2024.3.7 

オージェ電子分光を用いたナノ結晶シリコン/酸化シリコン複合膜の組成分析に関する研究

高木 香，荒田 朝基， 黒川 康良，増田 淳，宇佐美 徳隆，後藤 和泰

応用物理学会 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４回研究会  2024.3.7 

Investigation of deposition conditions for multilayer passivation films ​using Bayesian optimization and hydrogen concentration grouping​ International conference

Shoma Kondo, Yasuyoshi Kurokawa, Kazuhiro Gotoh, Kentaro Kutsukake, Noritaka Usami

2024 Korea-Japan PV Joint Workshop  2024.2.19 

Fabrication and Performance Evaluation of Thermoelectric Mg2Si Compounds Synthesized Using Silicon Extracted from Discarded Solar Panels International conference

Katsumichi Hanzawa, Shinya Kato, Kengo Yamanaka, Taisuke Doi, Yasuyoshi Kurokawa, Noritaka Usami, Takashi Itoh

2024 Korea-Japan PV Joint Workshop  2024.2.19 

3D reconstruction of mono-like Si structure and analysis of dislocation clusters International conference

Hidetaka Hirono, Hitoshi Matsuo, Hideyoshi Tanabe, Yasuyoshi Kurokawa, Noritaka Usami

2024 Korea-Japan PV Joint Workshop  2024.2.19 

Higher performance Si heterojunction solar cells International conference

Yasuyoshi Kurokawa, Noritaka Usami

Materials Science and Engineering Workshop  2024.1.23 

Thermoelectric properties of P-doped and B-doped polycrystalline silicon thin films International conference

Keisuke Shibata, Shinya Kato, Masashi Kurosawa, Kazuhiro Gotoh, Satoru Miyamoto, Takashi Itoh, Noritaka Usami, Yasuyoshi Kurokawa

2023 MRS Fall Meeting & Exhibit  2023.11.28 

Enhanced triboelectric effect in an N-polar GaN/p-Si dynamic p-n junction for DC generators International conference

Jia Wang, Haitao Wang, Yasuyoshi Kurokawa, Noritaka Usami, Hiroshi Amano

14th International Conference on Nitride Semiconductors 2023 (ICNS 14)  2023.11.14 

Improvement of open-circuit voltage and fill factor of silicon quantum dots solar cells by Bayesian optimization process International conference

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

34th International Photovoltaic Science and Engineering Conference  2023.11.9 

Bayesian optimization of carrier selectivity of p-type silicon nano-crystal/silicon oxide compound layer International conference

Kazushi Mizutani, Kazuhiro Gotoh, Yasuyoshi Kurokawa, Kentaro Kutsukake, Noritaka Usami

34th International Photovoltaic Science and Engineering Conference  2023.11.7 

Passivation enhancement mechanism of TiOx/c-Si heterostructures prepared by atomic layer deposition International conference

Yuto Michishita, Kazuhiro Gotoh, Shohei Fukaya, Yasuyoshi Kurokawa, Noritaka Usami

34th International Photovoltaic Science and Engineering Conference  2023.11.7 

太陽電池応用に向けたシリコンナノシートの 作製と評価に関する研究

大河内創太, 宇佐美徳隆, 黒川康良

第33回材料フォーラム TOKAI  2023.11.6 

TiOx:Nb層の導入によるTiOx/SiOy/Si ヘテロ構造のパッシベーション性能の向上

深谷昌平, 後藤和泰, 黒川康良, 宇佐美徳隆

第10回応用物理学会 名古屋大学スチューデントチャプター東海地区学術講演会  2023.11.3 

Pドープ/Bドープ poly-Si薄膜の熱電特性評価​

柴田 啓介, 加藤 慎也, 黒澤 昌志, 後藤 和泰, 宮本 聡, ​伊藤 孝至, 宇佐美 徳隆, 黒川 康良

第84回応用物理学会秋季学術講演会  2023.9.23  応用物理学会

Improved bottom cell current in perovskite/silicon tandem solar cells by double-sided nanopyramid Si texture

Y. Li, H. Sai, C. McDonald, Z. Xu, Y. Kurokawa, N. Usami, T. Matsui

2023.9.21 

廃棄結晶シリコン太陽電池から作製した高機能シリコンナノ粒子

加藤 慎也, 曽我 哲夫, 宇佐美 徳隆, 土居 大亮, 黒川 康良

第20回「次世代の太陽光発電システム」シンポジウム（第3回日本太陽光発電学会学術講演会）  2023.6.29  日本太陽光発電学会