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	Enhanced Crystalline Phase Purity of CH3NH3PbI3-XClX Film for High- Efficiency Hysteresis-Free Perovskite Solar Cells
	Yaug, Yingguo5,6; Feng, Shanglei5,6; Xu, Weidong7; Li, Meng7; Li, Li5,6; Zhang, Xingmin5,6; Ji, Gengwu5,6; Zhang, Xiaonan5,6; Wang, Zhaokui7; Xiong, Yimin8; Cao, Liang8; Sun, Baoquan7; Gao, Xingyu5,6
	2017-07-12
发表期刊	ACS APPLIED MATERIALS & INTERFACES
摘要	Despite rapid successful developments toward promising perovskite solar cells (PSCs) efficiency, they often suffer significant hysteresis effects. Using synchrotron-based grazing incidence X-ray diffraction (GIXRD) with different probing depths by varying the incident angle, we found that the perovskite films consist of dual phases with a parent phase dominant in the interior and a child phase with a smaller (110) interplanar space (d(110)) after rapid thermal annealing (RTA), which is a widely used post treatment to improve the crystallization of solution-processed perovskite films for high-performance planar PSCs. In particular, the child phase composition gradually increases with decreasing depth till it becomes the majority on the surface, which might be one of the key factors related to hysteresis in fabricated PSCs. We further improve the crystalline phase purity of the solution-processed CH3NH3PbI3-xClx perovskite film (referred as g-perovskite) by using a facile gradient thermal annealing (GTA), which shows a uniformly distributed phase structure in pinhole-free morphology with less undercoordinated Pb and I ions determined by synchrotron-based GIXRD, grazing incidence small-angle X-ray scattering, scanning electron microscopy, and X-ray photoelectron spectroscopy. Regardless of device structures (conventional and inverted types), the planar heterojunction PSCs employing CH3NH3PbI3-xClx g-perovskite films exhibit negligible hysteresis with a champion power conversion efficiency of 17.04% for TiO2-based conventional planar PSCs and 14.83% for poly(3,4-ethylenedioxythiophene:poly(styrenesulfonate) (PEDOT:PSS)-based inverted planar PSCs. Our results indicate that the crystalline phase purity in CH3NH3PbI3-xClx perovskite film, especially in the surface region, plays a crucial role in determining the hysteresis effect and device performance.
文章类型	Article
关键词	Solution-processed Perovskite Films Gixrd Dual Phases Conventional Planar Inverted Planar Pscs
WOS标题词	Science & Technology ; Technology
DOI	10.1021/acsami.7b03941
关键词[WOS]	ORGANOLEAD HALIDE PEROVSKITE ; POWER CONVERSION EFFICIENCY ; LEAD IODIDE PEROVSKITES ; X-RAY-DIFFRACTION ; HIGH-PERFORMANCE ; THIN-FILMS ; PHOTOVOLTAIC PERFORMANCE ; HOLE CONDUCTOR ; GRAPHENE OXIDE ; TEMPERATURE
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; National Natural Science Foundation of China(11175239 ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; Shanghai Sailing Program ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; National Key Research and Development Program of China(2016YFB0700401) ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; One Hundred Talents Project of the Chinese Academy of Sciences ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; 11405257 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; Strategic Priority Research Program of the Chinese Academy of Sciences(17YF1423700 ; U1632265 ; U1632265 ; U1632265 ; U1632265 ; U1632265 ; U1632265 ; 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WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000405764700110
引用统计	被引频次：36[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/33774
专题	中科院强磁场科学中心
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, 199 Renai Rd, Suzhou 215123, Peoples R China 4.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, 350 Shushanhu Rd, Hefei 230031, Peoples R China 5.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, 199 Renai Rd, Suzhou 215123, Peoples R China 8.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, 350 Shushanhu Rd, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Yaug, Yingguo,Feng, Shanglei,Xu, Weidong,et al. Enhanced Crystalline Phase Purity of CH3NH3PbI3-XClX Film for High- Efficiency Hysteresis-Free Perovskite Solar Cells[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(27):23141-23151.
APA	Yaug, Yingguo.,Feng, Shanglei.,Xu, Weidong.,Li, Meng.,Li, Li.,...&Gao, Xingyu.(2017).Enhanced Crystalline Phase Purity of CH3NH3PbI3-XClX Film for High- Efficiency Hysteresis-Free Perovskite Solar Cells.ACS APPLIED MATERIALS & INTERFACES,9(27),23141-23151.
MLA	Yaug, Yingguo,et al."Enhanced Crystalline Phase Purity of CH3NH3PbI3-XClX Film for High- Efficiency Hysteresis-Free Perovskite Solar Cells".ACS APPLIED MATERIALS & INTERFACES 9.27(2017):23141-23151.

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