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タイトル: | Shift Current Photovoltaics based on A Noncentrosymmetric Phase in in‐plane Ferroelectric SnS |
著者: | Chang, Yih‐Ren Nanae, Ryo Kitamura, Satsuki Nishimura, Tomonori Wang, Haonan Xiang, Yubei Shinokita, Keisuke https://orcid.org/0000-0002-7752-3251 (unconfirmed) Matsuda, Kazunari Taniguchi, Takashi Watanabe, Kenji Nagashio, Kosuke |
著者名の別形: | 張, 益仁 名苗, 遼 來村, 颯樹 西村, 知紀 篠北, 啓介 松田, 一成 谷口, 尚 渡邊, 賢司 長汐, 晃輔 |
キーワード: | 2D materials ferroelectric domains non-centrosymmetry shift currents tin sulfide |
発行日: | 20-Jul-2023 |
出版者: | Wiley |
誌名: | Advanced Materials |
巻: | 35 |
号: | 29 |
論文番号: | 2301172 |
抄録: | The shift-current photovoltaics of group-IV monochalcogenides has been predicted to be comparable to those of state-of-the-art Si-based solar cells. However, its exploration has been prevented from the centrosymmetric layer stacking in the thermodynamically stable bulk crystal. Herein, the non-centrosymmetric layer stacking of tin sulfide (SnS) is stabilized in the bottom regions of SnS crystals grown on a van der Waals substrate by physical vapor deposition and the shift current of SnS, by combining the polarization angle dependence and circular photogalvanic effect, is demonstrated. Furthermore, 180° ferroelectric domains in SnS are verified through both piezoresponse force microscopy and shift-current mapping techniques. Based on these results, an atomic model of the ferroelectric domain boundary is proposed. The direct observation of shift current and ferroelectric domains reported herein paves a new path for future studies on shift-current photovoltaics. |
記述: | 原子層強誘電材料のバルク光起電力発電を実証 --ナノ発電実現へ新たな道を開拓--. 京都大学プレスリリース. 2023-06-09. |
著作権等: | © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
URI: | http://hdl.handle.net/2433/284435 |
DOI(出版社版): | 10.1002/adma.202301172 |
PubMed ID: | 37148528 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2023-06-09-0 |
出現コレクション: | 学術雑誌掲載論文等 |
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