Trash into Treasure: delta-FAPbI(3) Polymorph Stabilized MAPbI(3) Perovskite with Power Conversion Efficiency beyond 21%

doi:10.1002/adma.201707143

	Trash into Treasure: delta-FAPbI(3) Polymorph Stabilized MAPbI(3) Perovskite with Power Conversion Efficiency beyond 21%
	Zhang, Yi 1; Zhou, Zhongmin 2; Ji, Fuxiang 2; Li, Zhipeng 2; Cui, Guanglei 2; Gao, Peng 3; Oveisi, Emad 4; Nazeeruddin, Mohammad Khaja 1; Pang, Shuping 2
刊名	ADVANCED MATERIALS
	2018-05-29
卷号	30 期号:22
关键词	Delta-fapbi(3) High Efficiency Passivation Perovskites Solar Cells
ISSN号	0935-9648
DOI	10.1002/adma.201707143
文献子类	Article
英文摘要	Effective passivation and stabilization of both the inside and interface of a perovskite layer are crucial for perovskite solar cells (PSCs), in terms of efficiency, reproducibility, and stability. Here, the first formamidinium lead iodide (delta-FAPbI(3)) polymorph passivated and stabilized MAPbI(3) PSCs are reported. This novel MAPbI(3)/delta-FAPbI(3) structure is realized via treating a mixed organic cation MA(x)FA(1-x)PbI(3) perovskite film with methylamine (MA) gas. In addition to the morphology healing, MA gas can also induce the formation of delta-FAPbI(3) phase within the perovskite film. The in situ formed 1D delta-FAPbI(3) polymorph behaves like an organic scaffold that can passivate the trap state, tunnel contact, and restrict organic-cation diffusion. As a result, the device efficiency is easily boosted to 21%. Furthermore, the stability of the MAPbI(3)/delta-FAPbI(3) film is also obviously improved. This delta-FAPbI(3) phase passivation strategy opens up a new direction of perovskite structure modification for further improving stability without sacrificing efficiency.
WOS关键词	FORMAMIDINIUM LEAD IODIDE ; SOLAR-CELLS ; THIN-FILMS ; CH3NH3PBI3 PEROVSKITE ; PHASE ; PHOTOVOLTAICS ; INTERFACE ; EVOLUTION ; JUNCTION ; BEHAVIOR
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000434034100016
资助机构	International S&T Cooperation Program of China(2015DFG62670) ; National Natural Science Foundation of China(51672290 ; Youth Innovation Promotion Association of CAS(2015167) ; Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology ; Haixi Institutes of Chinese Academy of Sciences ; 21671196 ; 61604156)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/11433]
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Nazeeruddin, Mohammad Khaja; Pang, Shuping
作者单位	1.EPFL Valais Wallis, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China 4.Ecole Polytech Fed Lausanne, Interdisciplinary Ctr Electron Microscopy, CH-1015 Lausanne, Switzerland
推荐引用方式 GB/T 7714	Zhang, Yi,Zhou, Zhongmin,Ji, Fuxiang,et al. Trash into Treasure: delta-FAPbI(3) Polymorph Stabilized MAPbI(3) Perovskite with Power Conversion Efficiency beyond 21%[J]. ADVANCED MATERIALS,2018,30(22).
APA	Zhang, Yi.,Zhou, Zhongmin.,Ji, Fuxiang.,Li, Zhipeng.,Cui, Guanglei.,...&Pang, Shuping.(2018).Trash into Treasure: delta-FAPbI(3) Polymorph Stabilized MAPbI(3) Perovskite with Power Conversion Efficiency beyond 21%.ADVANCED MATERIALS,30(22).
MLA	Zhang, Yi,et al."Trash into Treasure: delta-FAPbI(3) Polymorph Stabilized MAPbI(3) Perovskite with Power Conversion Efficiency beyond 21%".ADVANCED MATERIALS 30.22(2018).