Simultaneous Evolution of Uniaxially Oriented Grains and Ultralow-Density Grain-Boundary Network in CH(3)NH(3)Pbl(3) Perovskite Thin Films Mediated by Precursor Phase Metastability

doi:10.1021/acsenergylett.7b00980

	Simultaneous Evolution of Uniaxially Oriented Grains and Ultralow-Density Grain-Boundary Network in CH(3)NH(3)Pbl(3) Perovskite Thin Films Mediated by Precursor Phase Metastability
	Ji, Fuxiang 1; Pang, Shuping 1; Zhang, Lin 2; Zong, Yingxia 1,2; Cui, Guanglei 1; Padture, Nitin P.2; Zhou, Yuanyuan 2
刊名	ACS ENERGY LETTERS
	2017-12-01
卷号	2 期号:12 页码:2727-2733
ISSN号	2380-8195
DOI	10.1021/acsenergylett.7b00980
文献子类	Article
英文摘要	Solution-processed organic-inorganic halide perovskite (OIHP) thin films typically contain fine, randomly oriented grains and a high-density grain-boundary network, which are unfavorable for key film functions including charge transport and environmental stability. Here, we report a new chemical route for achieving CH3NH3PbI3 (MAPbI(3)) OIHP thin films comprising large, uniaxially oriented grains and an ultralow-density grain-boundary network. This route starts with a new metastable liquid-state precursor phase, MAPbI(3)center dot MACl center dot xCH(3)NH(2), which converts to metastable MAPbI(3)center dot MACl and then to MAPbI(3) OIHP upon stepwise release of volatile CH3NH2 and MACl. Perovskite solar cells made via this route show high power conversion efficiency of up to 19.440, with significantly enhanced environmental stability.
WOS关键词	EFFICIENT SOLAR-CELLS ; HALIDE PEROVSKITES ; TRIHALIDE ; GROWTH ; PERFORMANCE ; CRYSTALS ; BEHAVIOR
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000417888400015
资助机构	National Natural Science Foundation of China(51672290 ; Youth Innovation Promotion Association of CAS(2015167) ; Office of Naval Research(N00014-17-1-2232) ; National Science Foundation(OIA-1538893) ; 21671196)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/10529]
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Pang, Shuping; Padture, Nitin P.; Zhou, Yuanyuan
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, 189 Songling Rd, Qingdao 266101, Peoples R China 2.Brown Univ, Sch Engn, 184 Hope St, Providence, RI 02912 USA
推荐引用方式 GB/T 7714	Ji, Fuxiang,Pang, Shuping,Zhang, Lin,et al. Simultaneous Evolution of Uniaxially Oriented Grains and Ultralow-Density Grain-Boundary Network in CH(3)NH(3)Pbl(3) Perovskite Thin Films Mediated by Precursor Phase Metastability[J]. ACS ENERGY LETTERS,2017,2(12):2727-2733.
APA	Ji, Fuxiang.,Pang, Shuping.,Zhang, Lin.,Zong, Yingxia.,Cui, Guanglei.,...&Zhou, Yuanyuan.(2017).Simultaneous Evolution of Uniaxially Oriented Grains and Ultralow-Density Grain-Boundary Network in CH(3)NH(3)Pbl(3) Perovskite Thin Films Mediated by Precursor Phase Metastability.ACS ENERGY LETTERS,2(12),2727-2733.
MLA	Ji, Fuxiang,et al."Simultaneous Evolution of Uniaxially Oriented Grains and Ultralow-Density Grain-Boundary Network in CH(3)NH(3)Pbl(3) Perovskite Thin Films Mediated by Precursor Phase Metastability".ACS ENERGY LETTERS 2.12(2017):2727-2733.