Crystallinity Preservation and Ion Migration Suppression through Dual Ion Exchange Strategy for Stable Mixed Perovskite Solar Cells.
文献类型：期刊论文
| 作者 | Zhang, Tiankai ; Long, Mingzhu ; Yan, Keyou ; Qin, Minchao ; Lu, Xinhui ; Zeng, Xiaoliang ; Cheng, Chi Man ; Wong, Kam Sing ; Liu, Pengyi ; Xie, Weiguang |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2017 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The mixed perovskite (FAPbI(3))(1-x)(MAPbBr(3))(x), prepared by directly mixing different perovskite components, suffers from phase competition and a low-crystallinity character, resulting in instability, despite the high efficiency. In this study, a dual ion exchange (DIE) method is developed by treating as-prepared FAPbI(3) with methylammonium brodide (MABr)/tert-butanol solution. The converted perovskite thin film shows an optimized absorption edge at 800 nm after reaction time control, and the high crystallinity can be preserved after MABr incorporation. More importantly, it is found that the threshold electrical field to initiate ion migration is greatly increased in DIE perovskite thin film because excess MABr on the surface can effectively heal structural defects located on grain boundaries during the ion exchange process. It contributes to the over-one-month moisture stability under approximate to 65% room humidity (RH) and greatly enhanced light stability for the bare perovskite film. As a result of preserved high crystallinity and simultaneous grain boundary passivation, the perovskite solar cells fabricated by the DIE method demonstrate reliable reproducibility with an average power conversion efficiency (PCE) of 17% and a maximum PCE of 18.1%, with negligible hysteresis. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/11689]  |
| 专题 | 深圳先进技术研究院_集成所 |
| 作者单位 | ADVANCED ENERGY MATERIALS |
| 推荐引用方式 GB/T 7714 | Zhang, Tiankai , Long, Mingzhu , Yan, Keyou ,et al. Crystallinity Preservation and Ion Migration Suppression through Dual Ion Exchange Strategy for Stable Mixed Perovskite Solar Cells.[J]. ADVANCED ENERGY MATERIALS,2017. |
| APA | Zhang, Tiankai ., Long, Mingzhu ., Yan, Keyou ., Qin, Minchao ., Lu, Xinhui .,...& Xu, Jianbin.(2017).Crystallinity Preservation and Ion Migration Suppression through Dual Ion Exchange Strategy for Stable Mixed Perovskite Solar Cells..ADVANCED ENERGY MATERIALS. |
| MLA | Zhang, Tiankai ,et al."Crystallinity Preservation and Ion Migration Suppression through Dual Ion Exchange Strategy for Stable Mixed Perovskite Solar Cells.".ADVANCED ENERGY MATERIALS (2017). |
入库方式： OAI收割
来源：深圳先进技术研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。