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
发表期刊ADVANCED MATERIALS
ISSN0935-9648
卷号30期号:11页码:-
文章类型期刊论文
摘要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.
关键词Efficient Solar-cells Lead(Ii) Iodide Base Adduct Performance Evolution Crystallization Growth Vapor Photovoltaics Deposition
DOI10.1002/adma.201706401
收录类别SCI
语种英语
WOS记录号WOS:000427111300024
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29044
专题中科院上海应用物理研究所2011-2018年
作者单位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
推荐引用方式
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):-.
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