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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 PublicationADVANCED MATERIALS
ISSN0935-9648
Volume30Issue:11Pages:-
Subtype期刊论文
AbstractMetal 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.
KeywordEfficient Solar-cells Lead(Ii) Iodide Base Adduct Performance Evolution Crystallization Growth Vapor Photovoltaics Deposition
DOI10.1002/adma.201706401
Indexed BySCI
Language英语
WOS IDWOS:000427111300024
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29044
Collection中科院上海应用物理研究所2011-2019年
Affiliation1.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):-.
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