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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| s41427-022-00394-4.pdf | 3.05 MB | Adobe PDF | 見る/開く |
| タイトル: | Electron-phonon interactions in halide perovskites |
| 著者: | Yamada, Yasuhiro Kanemitsu, Yoshihiko    https://orcid.org/0000-0002-0788-131X (unconfirmed) |
| 著者名の別形: | 山田, 泰裕 金光, 義彦 |
| キーワード: | Applied physics Solar cells |
| 発行日: | 2022 |
| 出版者: | Springer Nature |
| 誌名: | NPG Asia Materials |
| 巻: | 14 |
| 論文番号: | 48 |
| 抄録: | Strong electron-phonon interactions are frequently considered the origin of the unique electrical and optical properties of lead halide perovskites. Electron-phonon interactions induce the formation of a polaron, which is a charge carrier dressed with a phonon cloud. The details of polaron formation are crucial for carrier transport since polaron formation leads to a larger effective mass of a carrier. Several mechanisms have been proposed regarding the physics of polaron formation in halide perovskites, but the details are still under active debate. While the Fröhlich interaction plays an essential role in ionic crystals, we also need to consider the strong phonon anharmonicity of halide perovskites that may lead to the formation of an unconventional polaron. In this review article, we discuss the uniqueness of perovskite semiconductors from the viewpoint of electron-phonon interactions. We review the experimental results and the proposed models concerning the effective carrier mass and carrier mobility. Finally, we briefly explain two physical phenomena related to strong electron-phonon interactions: strong anti-Stokes photoluminescence and slow hot-carrier cooling. |
| 著作権等: | © The Author(s) 2022 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
| URI: | http://hdl.handle.net/2433/274566 |
| DOI(出版社版): | 10.1038/s41427-022-00394-4 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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