研究者詳細 - 長田　実

論文 - 長田　実

分割表示 207 件中 41 - 60 件目／全件表示 >>

無機ナノシートを利用した室温セラミックスコーティング招待有り査読有り

長田　実

セラミックス 55 巻 ( 10 ) 頁： 741 - 745 2020年10月

Scalable design of two-dimensional oxide nanosheets for construction of ultrathin multilayer nanocapacitors 査読有り国際誌

Muhammad Shuaib Khan, Hyung-Jun Kim, Yoon-Hyun Kim, Yasuo Ebina, Wataru Sugimoto, Takayoshi Sasaki, Minoru Osada

Small 16 巻頁： 2003485 2020年8月

担当区分：最終著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

Large size of capacitors is the main hurdle in miniaturization of current electronic devices. Herein, a scalable solution-based layer-by-layer engineering of metallic and high-κ dielectric nanosheets into multilayer nanosheet capacitors (MNCs) with overall thickness of ≈20 nm is presented. The MNCs are built through neat tiling of 2D metallic Ru0.95 O20.2- and high-κ dielectric Ca2 NaNb4 O13- nanosheets via the Langmuir-Blodgett (LB) approach at room temperature which is verified by cross-sectional high-resolution transmission electron microscopy (HRTEM). The resultant MNCs demonstrate a high capacitance of 40-52 µF cm-2 and low leakage currents down to 10-5 -10-6 A cm-2 . Such MNCs also possess complimentary in situ robust dielectric properties under high-temperature measurements up to 250 °C. Based on capacitance normalized by the thickness, the developed MNC outperforms state-of-the-art multilayer ceramic capacitors (MLCC, ≈22 µF cm-2 /5 × 104 nm) present in the market. The strategy is effective due to the advantages of facile, economical, and ambient temperature solution assembly.

DOI： 10.1002/smll.202003485

PubMed

Synthesis of NaMoO3F and Na5W3O9F5 with morphological controllability in non-aqueous solvents. 査読有り国際誌

Y. Asakura, T. Akahira, M. Kobayashi, M. Osada, S. Yin

Inorganic Chemistry 59 巻 ( 15 ) 頁： 10707 - 10716 2020年8月

掲載種別：研究論文（学術雑誌）

NaMoO3F and Na5W3O9F5 were synthesized by solvothermal reaction of MoO3 and WO3, respectively, with NaF in nonaqueous solvents. These reactions were realized at low temperatures (150-200 °C) without the use of HF. This synthesis method is much more facile and safe procedure compared with general synthesis methods for oxyfluorides which includes hydrothermal reaction under a presence of HF or solid-state reaction at high temperatures in vacuum sealed tube or under high pressure. In the case of the reaction of MoO3 with NaF, the kind of solvent largely affected the obtained morphologies of NaMoO3F. The morphology in the case of acetonitrile as a solvent was rodlike with a micrometer-scale size, while that in the case of ethanol was polyhedral with a size of several hundred nanometers. In addition, the solvothermal reaction of WO3 with NaF led to the formation of Na5W3O9F5. Also, the difference of solvents for the solvothermal reaction affected the obtained particle sizes. The effect of the solvents on the morphologies of the obtained oxyfluorides probably resulted from the difference of the solubility of NaF and the subsequent dissolution ratio of MoO3 or WO3 in the used solvents. Our synthesis method can expand the applicability of oxyfluorides by providing a new phase and/or unique morphology.

DOI： 10.1021/acs.inorgchem.0c01175

Web of Science

Scopus

PubMed

Graphitic carbon nitride-based low-dimensional heterostructures for photocatalytic applications 査読有り国際誌

M-S. Khan, F. Zhang, M. Osada, S-S. Mao, S. Shen

Solar RRL 4 巻 ( 8 ) 2020年8月

無機ナノシートの精密集積と電子デバイスへの応用招待有り査読有り

長田　実

機能材料 40 巻 ( 7 ) 頁： 15 - 21 2020年7月

On/off boundary of photocatalytic activity between single- and bilayer MoS2 査読有り国際誌

Takaaki Taniguchi, Leanddas Nurdiwijayanto, Shisheng Li, Hong En Lim, Yasumitsu Miyata, Xueyi Lu, Renzhi Ma, Dang-Ming Tang, Shigenori Ueda, Kazuhito Tsukagoshi, Takayoshi Sasaki, Minoru Osada

ACS Nano 14 巻 ( 6 ) 頁： 6663 - 6672 2020年6月

Hard-template synthesis of hollow mesoporous silica nanoplates using layered double hydroxide 査読有り国際誌

Shi Y.

Chemistry Letters 49 巻 ( 9 ) 頁： 1078 - 1080 2020年6月

2次元ナノシートの形態制御と機能材料への応用招待有り査読有り

長田　実

セラミックス 55 巻 ( 5 ) 頁： 390 - 394 2020年5月

van der Waals force layered multiferroic hybrid perovskite (CH3NH3)2CuCl4 single crystals 査読有り国際誌

Zhao Hu, Hongyang Zhao, Zhenxiang Cheng, Jianxu Ding, Han Gao, Yibo Han, Shengao Wang, Zhiwen Xu, Yucheng Zhou, Tingting Jia, Hideo Kimura, Minoru Osada

Physical chemistry chemical physics : PCCP 22 巻 ( 7 ) 頁： 4235 - 4239 2020年4月

担当区分：最終著者掲載種別：研究論文（学術雑誌）

In inorganic-organic perovskites, the three-dimensional arrangement of the organic group results in more subtle balance of charge, spin and space, thereby providing an attractive route toward new multiferroics. Here we report the existing of multiple ferroic orderings in inorganic-organic layered perovskites with relative strong hydrogen bond ordering of the organic chains intra plane. In addition, the inter plane in perovskite is stacking via van der Waals force. However, such magnetoelectric coupling properties for this compound have not been reported since it is difficult to characterize the properties in single crystals since most of the hybrid perovskites are usually deliquescent and unstable when exposed to air. To deal with these problems, we synthesized a (CH3NH3)2CuCl4 single crystal by using a simple evaporation technique, and demonstrated ferroelectric, magnetic and magneto-electric properties of (CH3NH3)2CuCl4. The internal hydrogen bonding of easily tunable organic unit combined with 3d transition-metal layers in such hybrid perovskites make (CH3NH3)2CuCl4 a multiferroic crystal with magnetoelectrical coupling and offer an new way to engineer multifunctional multiferroic.

DOI： 10.1039/c9cp05976h

Web of Science

PubMed

Guanine crystals regulated by chitin-based honeycomb frameworks for tunable structural colors of sapphirinid copepod, Sapphirina nigromaculata 査読有り国際誌

Kimura Tsubasa, Takasaki Mihiro, Hatai Ryosuke, Nagai Yukiko, Uematsu Katsuyuki, Oaki Yuya, Osada Minoru, Tsuda Hiroyuki, Ishigure Takaaki, Toyofuku Takashi, Shimode Shinji, Imai Hiroaki

10 巻 ( 1 ) 頁： 2266 - 2266 2020年2月

Nitrogen doped ultrathin calcium/sodium niobate perovskite nanosheets for photocatalytic water oxidation 査読有り国際誌

Khan Muhammad Shuaib, Diao Zhidan, Osada Minoru, Shen Shaohua

SOLAR ENERGY MATERIALS AND SOLAR CELLS 205 巻 2020年2月

UV degradation mechanism of TiO2-based perovskite solar cells studied by pump-probe spectroscopy 査読有り国際誌

Luo Chih-Wei, Thilakan Anusha Puliparambil, Li Jia-Xin, Chen Tzu-Pei, Li Shao-Sian, Chen Chun-Wei, Yabushita Atsushi, Osada Minoru, Tsukagoshi Kazuhito, Sasaki Takayoshi

PHOTONICS FOR SOLAR ENERGY SYSTEMS VIII 11366 巻 2020年

無機ナノシートを利用した室温セラミックスコーティング

長田実

セラミックス 55 巻頁： 741 - 745 2020年

Tunable Chemical Coupling in Two-Dimensional van der Waals Electrostatic Heterostructures.

Taniguchi T, Li S, Nurdiwijayanto L, Kobayashi Y, Saito T, Miyata Y, Obata S, Saiki K, Yokoi H, Watanabe K, Taniguchi T, Tsukagoshi K, Ebina Y, Sasaki T, Osada M

ACS nano 2019年10月

Wafer-scale and deterministic patterned growth of monolayer MoS(2)via vapor-liquid-solid method

Li Shisheng, Lin Yung-Chang, Liu Xu-Ying, Hu Zehua, Wu Jing, Nakajima Hideaki, Liu Song, Okazaki Toshiya, Chen Wei, Minari Takeo, Sakuma Yoshiki, Tsukagoshi Kazuhito, Suenaga Kazu, Taniguchi Takaaki, Osada Minoru

NANOSCALE 11 巻 ( 34 ) 頁： 16122-16129 2019年9月

Dielectric nanosheet modified plasmonic-paper as highly sensitive and stable SERS substrate and its application for pesticides detection.

Mekonnen ML, Chen CH, Osada M, Su WN, Hwang BJ

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 225 巻頁： 117484 2019年8月

無機ナノシートの精密集積と高次メタマテリアルへの応用

長田実, 谷口貴章, 佐々木高義

表面技術 70 巻 ( 7 ) 頁： 355 - 358 2019年7月

Origin of Extended UV Stability of 2D Atomic Layer Titania-Based Perovskite Solar Cells Unveiled by Ultrafast Spectroscopy

Thilakan Anusha Puliparambil, Li Jia-Xing, Chen Tzu-Pei, Li Shao-Sian, Chen Chun-Wei, Osada Minoru, Tsukagoshi Kazuhito, Sasaki Takayoshi, Yabushita Atsushi, Wu Kaung-Hsiung, Luo Chih-Wei

ACS APPLIED MATERIALS & INTERFACES 11 巻 ( 24 ) 頁： 21473-21480 2019年6月

Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals

Tsukiyama Keishi, Takasaki Mihiro, Kitamura Naoto, Idemoto Yasushi, Oaki Yuya, Osada Minoru, Imai Hiroaki

NANOSCALE 11 巻 ( 10 ) 頁： 4523-4530 2019年3月

酸化物ナノシートの液相合成と機能材料への応用

長田実

ファインケミカル 48 巻頁： 28 - 33 2019年

　前のページ - 次のページ　

<長田 実>

論文 - 長田 実

<長田　実>

論文 - 長田　実