Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| In Situ Real-Time Study of the Dynamic Formation and Conversion Processes of Metal Halide Perovskite Films | |
| Meng, K; Wu, LL; Liu, Z; Wang, X; Xu, QF; Hu, YD; He, SF; Li, XL; Li, T; Chen, G | |
| 2018 | |
| Source Publication | ADVANCED MATERIALS
 |
| ISSN | 0935-9648 |
| Volume | 30Issue:11Pages:- |
| Subtype | 期刊论文 |
| Abstract | Metal halide perovskite solar cells (PSCs) have advanced to the forefront of solution-processed photovoltaic techniques and made stunning progress in power conversion efficiency (PCE). Further improvements in device performances rely on perfecting the structure and morphology of perovskite films. However, undesirable defects such as pinholes and grain boundaries are often created in film preparations due to lack of knowledge of the precise reaction mechanism. Here, in situ grazing-incidence X-ray diffraction (GI-XRD) investigations are performed, facilitated by other techniques, on the formation of the widely adopted MAPbI(3) (MA = methylammonium) perovskite films from their intermediate adduct (IA) phases. The influences of solvent vapor atmospheres on MAPbI(3) films are also systematically investigated, where the dynamic conversion processes between different phases are visualized in real time. Further in situ GI-XRD and infrared spectroscopy measurements reveal that the IA phases contain both N, N-dimethylformamide and dimethyl sulfoxide (DMSO) as coordinating molecules. By tuning the DMSO concentration in perovskite precursors, the ideal perovskite film is formed and the best PCE is achieved for the planar MAPbI(3)-based PSCs. These findings highlight the role of IA phases and the effect of solvent atmospheres on the quality of perovskite films, providing direct insights into their growth mechanism. |
| Keyword | Efficient Solar-cells Lead(Ii) Iodide Base Adduct Performance Evolution Crystallization Growth Vapor Photovoltaics Deposition |
| DOI | 10.1002/adma.201706401 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000427111300024 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/29044 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Affiliation | 1.Meng, K 2.Wu, LL 3.Liu, Z 4.Wang, X 5.Xu, QF 6.Hu, YD 7.He, SF 8.Li, XL 9.Li, T 10.Chen, G |
| Recommended Citation GB/T 7714 | Meng, K,Wu, LL,Liu, Z,et al. In Situ Real-Time Study of the Dynamic Formation and Conversion Processes of Metal Halide Perovskite Films[J]. ADVANCED MATERIALS,2018,30(11):-. |
| APA | Meng, K.,Wu, LL.,Liu, Z.,Wang, X.,Xu, QF.,...&Chen, G.(2018).In Situ Real-Time Study of the Dynamic Formation and Conversion Processes of Metal Halide Perovskite Films.ADVANCED MATERIALS,30(11),-. |
| MLA | Meng, K,et al."In Situ Real-Time Study of the Dynamic Formation and Conversion Processes of Metal Halide Perovskite Films".ADVANCED MATERIALS 30.11(2018):-. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| In Situ Real-Time St（4832KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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