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Phase Aggregation Suppression of Homogeneous Perovskites Processed in Ambient Condition toward Efficient Light‐Emitting Diodes
https://oist.repo.nii.ac.jp/records/2177
https://oist.repo.nii.ac.jp/records/2177dbb2e726-6f75-4d65-9c78-2cd13aca4585
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Manuscript (3.2 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-07-30 | |||||
| タイトル | ||||||
| タイトル | Phase Aggregation Suppression of Homogeneous Perovskites Processed in Ambient Condition toward Efficient Light‐Emitting Diodes | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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× Bu, Tongle× Ono, Luis K.× Tong, Guoqing× Zhang, Hui× Qi, Yabing |
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| 書誌情報 |
en : Advanced Functional Materials p. 2103399, 発行日 2021-06-09 |
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| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Perovskite light-emitting diodes (PeLEDs) have attracted attention because of their high efficiencies. However, due to the sensitivity of perovskites to ambient condition, perovskite emitter layers are generally fabricated under an inert gas environment (e.g., dry N2), which increases processing complexity and cost. Here, air-prepared quasi-2D perovskites are reported for efficient PeLEDs. It is found that the phase aggregation is the major obstacle deteriorating the characteristics of air-prepared perovskites. Through antisolvent engineering to modulate the nucleation and growth characteristics of perovskite films from precursor solution, phase aggregations are restrained. Confocal laser scanning fluorescence microscopy results demonstrate homogeneous perovskite films with uniform photoluminescence distributions. Traps at grain boundaries are passivated, and exciton transfer among perovskite phases becomes effective. Finally, efficient green PeLEDs based on air-prepared perovskites are realized with an external quantum efficiency of 15.4%. This work provides a promising strategy to fabricate cost-effective perovskite devices in ambient air condition. | |||||
| 出版者 | ||||||
| 出版者 | Wiley | |||||
| 出版者 | ||||||
| 出版者 | Wiley-VCH Verlag | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1616-301X | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1616-3028 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1002/adfm.202103399 | |||||
| 権利 | ||||||
| 権利情報 | This is the peer reviewed version of the following article: Yuqiang Liu, Tongle Bu, Luis K. Ono, Guoqing Tong, Hui Zhang, Yabing Qi, Phase Aggregation Suppression of Homogeneous Perovskites Processed in Ambient Condition toward Efficient Light-Emitting Diodes, Advanced Functional Materials, 2021, 2103399, which has been published in final form at https://doi.org/10.1002/adfm.202103399. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202103399 | |||||
| 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 | |||||
