In Situ Real-Time Study of the Dynamic Formation and Conversion Processes of Metal Halide Perovskite Films

doi:10.1002/adma.201706401

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	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
ISSN	0935-9648
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
DOI	10.1002/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：3[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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