WEKO3
アイテム
In-situ passivation perovskite targeting efficient light-emitting diodes via spontaneously formed silica network
https://oist.repo.nii.ac.jp/records/1904
https://oist.repo.nii.ac.jp/records/1904787627d7-8f98-4c76-9bb8-c5d308eaaea2
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Accepted Manuscript 20210205 (1.2 MB)
|
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International(https://creativecommons.org/licenses/by-nc-nd/4.0/)
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-01-20 | |||||
| タイトル | ||||||
| タイトル | In-situ passivation perovskite targeting efficient light-emitting diodes via spontaneously formed silica network | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Perovskite | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Light-emitting diodes | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Crosslinking | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Non-radiative recombination | |||||
| 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 | |||||
| 著者（英） |
Liu, Yuqiang
× Liu, Yuqiang× Cai, Lei× Xu, Yafeng× Li, Junnan× Qin, Yuanshuai× Song, Tao× Wang, Lu× Li, Youyong× Ono, Luis K.× Qi, Yabing× Sun, Baoquan |
|||||
| 書誌情報 |
en : Nano Energy 巻 78, p. 105134, 発行日 2020-08-08 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Perovskite materials are attractive candidates as emitting layers in light-emitting diodes due to their excellent optical and electrical properties. Effective charge radiative recombination is a key to target high-efficiency perovskite light-emitting diodes (PeLEDs). State-of-the-art effective passivation chemicals in PeLEDs mostly belong to organic chelating molecules, associated with like molecular detachment in the device operation, which simultaneously degrades the performance especially the operational stability of the devices. Here, a silane material tetraethoxysilane (TEOS), which can be crosslinkable to avoid any likely detachment from perovskite film, is incorporated into the perovskite film to enhance film radiative recombination and stability. An oxo-bridged silica network anchored with perovskite is formed after the TEOS in-situ crosslinking process. It is found that the lone pair electrons in TEOS network can coordinate with the undercoordinated Pb2+ of perovskite. Consequently, defect states in perovskite film are dramatically diminished, which enhances radiative recombination. The photoluminescence intensity of resultant perovskite-TEOS film is enhanced by 40% over that of the pristine one. The average photoluminescence lifetime of perovskite-TEOS film reaches 58 ns, enhanced by 65% over that of the pristine perovskite film of 35 ns.. As a result, a green PeLED achieved an external quantum efficiency of 16.6% with improved working stability. This work presents a facile strategy targeting efficient and stable perovskite devices via utilizing detachment-free self-crosslinked ligands. | |||||
| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2211-2855 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1016/j.nanoen.2020.105134 | |||||
| 権利 | ||||||
| 権利情報 | This article/chapter was published in Nano Energy, Volume 78, Yuqiang Liu, Lei Cai, Yafeng Xu, Junnan Li, Yuanshuai Qin, Tao Song, Lu Wang, Youyong Li, Luis K. Ono, Yabing Qi, Baoquan Sun, In-situ passivation perovskite targeting efficient light-emitting diodes via spontaneously formed silica network, Page 105134, © Elsevier 2020. | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S2211285520307126 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
