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Ultrafast selective extraction of hot holes from cesium lead iodide perovskite films
http://hdl.handle.net/10228/00007533
http://hdl.handle.net/10228/000075336f49d4ef-e7f5-4b1c-98fb-0c2eccb1bcfc
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JEC_16-January-2018.pdf (695.9 kB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||
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| 公開日 | 2020-01-16 | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| タイトル | ||||||
| タイトル | Ultrafast selective extraction of hot holes from cesium lead iodide perovskite films | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 著者 |
Shen, Qing
× Shen, Qing× Ripolles, Teresa S.× Even, Jacky× Zhang, Yaohong× Ding, Chao× Liu, Feng× Izuishi, Takuya× Nakazawa, Naoki× Toyoda, Taro× 尾込, 裕平× 早瀬, 修二 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Lead halide perovskites have some unique properties which are very promising for optoelectronic applications such as solar cells, LEDs and lasers. One important and expected application of perovskite halide semiconductors is solar cell operation including hot carriers. This advanced solar cell concept allows overcoming the Shockley–Queisser efficiency limit, thereby achieving energy conversion efficiency as high as 66% by extracting hot carriers. Understanding ultrafast photoexcited carrier dynamics and extraction in lead halide perovskites is crucial for these applications. Here, we clarify the hot carrier cooling and transfer dynamics in all-inorganic cesium lead iodide (CsPbI3) perovskite using transient absorption spectroscopy and Al2O3, poly(3-hexylthiophene-2,5-diyl) (P3HT) and TiO2 as selective contacts. We find that slow hot carrier cooling occurs on a timescale longer than 10 ps in the cases of CsPbI3/Al2O3 and CsPbI3/ TiO2, which is attributed to hot phonon bottleneck for the high photoexcited carrier density. An efficient ultrafast hole transfer from CsPbI3 to the P3HT hole extracting layer is observed. These results suggest that hot holes can be extracted by appropriate selective contacts before energy dissipation into the halide perovskite lattice and that CsPbI3 has a potential for hot carrier solar cell applications. | |||||
| 書誌情報 |
en : Journal of Energy Chemistry 巻 27, 号 4, p. 1170-1170, 発行日 2018-01-16 |
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| 出版社 | ||||||
| 出版者 | Elsevier | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/j.jechem.2018.01.006 | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 435 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 2095-4956 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 2096-885X | |||||
| 著作権関連情報 | ||||||
| 権利情報 | Copyright (c) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved. | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | CsPbI3 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Perovskite | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Hot carrier cooling | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Hot hole transfer | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Hot phonon bottleneck | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| 査読の有無 | ||||||
| 値 | yes | |||||
| 研究者情報 | ||||||
| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/322_ja.html | |||||
| 論文ID（連携） | ||||||
| 値 | 10310141 | |||||
| 連携ID | ||||||
| 値 | 6667 | |||||
