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CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
Ag-Incorporated Organic-Inorganic Perovskite Films and Planar Heterojunction Solar Cells
作者: Chen, Q; Chen, L; Ye, FY; Zhao, T; Tang, F; Rajagopal, A; Jiang, Z; Jiang, SL; Jen, AKY; Xie, Y; Cai, JH; Chen, LW
刊名: NANO LETTERS
出版日期: 2017
卷号: 17, 期号:5, 页码:3231-3237
关键词: Perovskite polarity ; planar heterojunction perovskite solar tell ; metal incorporation ; carrier density ; equivalent circuit model
DOI: 10.1021/acs.nanolett.7b00847
文章类型: 期刊论文
英文摘要: 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.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000401307300072
ISSN号: 1530-6984
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27249
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Chen, Q,Chen, L,Ye, FY,et al. Ag-Incorporated Organic-Inorganic Perovskite Films and Planar Heterojunction Solar Cells[J]. NANO LETTERS,2017-01-01,17(5):3231-3237.
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