Ag-Incorporated Organic-Inorganic Perovskite Films and Planar Heterojunction Solar Cells

doi:10.1021/acs.nanolett.7b00847

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	Ag-Incorporated Organic-Inorganic Perovskite Films and Planar Heterojunction Solar Cells
	Chen, Q; Chen, L; Ye, FY; Zhao, T; Tang, F; Rajagopal, A; Jiang, Z; Jiang, SL; Jen, AKY; Xie, Y; Cai, JH; Chen, LW
	2017
发表期刊	NANO LETTERS
ISSN	1530-6984
卷号	17 期号:5 页码:3231-3237
文章类型	期刊论文
摘要	Controlled doping for adjustable material polarity and charge carrier concentration is the basis of semiconductor materials and devices, and it is much more difficult to achieve in ionic semiconductors (e.g., ZnO and GaN) than in covalent semiconductors (e.g., Si and Ge), due to the high intrinsic defect density in ionic semiconductors. The organic-inorganic perovskite material, which is frenetically being researched for applications in solar cells and beyond, is also an ionic semiconductor. Here we present the Ag-incorporated organicinorganic perovskite films and planar heterojunction solar cells. Partial substitution of Pb2+ by Ag+ leads to improved film morphology, crystallinity, and carrier dynamics as well as shifted Fermi level and reduced electron concentration. Consequently, in planar heterojunction photovoltaic devices with inverted stacking structure, Ag incorporation results in an enhancement of the power conversion efficiency from 16.0% to 18.4% in MAPbI(3) based devices and from 11.2% to 15.4% in MAPbI(3-x)Cl(x) based devices. Our work implies that Ag incorporation is a feasible route to adjust carrier concentrations in solution-processed perovskite materials in spite of the high concentration of intrinsic defects.
关键词	Perovskite Polarity Planar Heterojunction Perovskite Solar Tell Metal Incorporation Carrier Density Equivalent Circuit Model
DOI	10.1021/acs.nanolett.7b00847
收录类别	SCI
语种	英语
WOS记录号	WOS:000401307300072
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.sinap.ac.cn/handle/331007/27249
专题	中科院上海应用物理研究所2011-2018年
推荐引用方式 GB/T 7714	Chen, Q,Chen, L,Ye, FY,et al. Ag-Incorporated Organic-Inorganic Perovskite Films and Planar Heterojunction Solar Cells[J]. NANO LETTERS,2017,17(5):3231-3237.
APA	Chen, Q.,Chen, L.,Ye, FY.,Zhao, T.,Tang, F.,...&Chen, LW.(2017).Ag-Incorporated Organic-Inorganic Perovskite Films and Planar Heterojunction Solar Cells.NANO LETTERS,17(5),3231-3237.
MLA	Chen, Q,et al."Ag-Incorporated Organic-Inorganic Perovskite Films and Planar Heterojunction Solar Cells".NANO LETTERS 17.5(2017):3231-3237.

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