Control of Charge Transport in the Perovskite CH3NH3PbI3 Thin Film

被引：38
作者：
Shi, Jiangjian [1 ]
Wei, Huiyun [1 ]
Lv, Songtao [1 ]
Xu, Xin [1 ]
Wu, Huijue [1 ]
Luo, Yanhong [1 ]
Li, Dongmei [1 ]
Meng, Qingbo [1 ]
机构：
[1] Chinese Acad Sci, Key Lab Renewable Energy, Beijing Key Lab New Energy Mat & Devices, Inst Phys, Beijing 100190, Peoples R China
来源：
CHEMPHYSCHEM | 2015年 / 16卷 / 04期
关键词：
charge transport; kinetics; perovskite phases; solar cells; thermodynamics; SOLAR-CELL; HALIDE PEROVSKITES; HIGH-PERFORMANCE; DEPOSITION; ORIGINS;
D O I：
10.1002/cphc.201402815
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Carrier density and transport properties in the CH3NH3PbI3 thin film have been investigated. It is found that the carrier density, the depletion field, and the charge collection and transport properties in the CH3NH3PbI3 absorber film can be controlled effectively by different concentrations of reactants. That is, the carrier properties and the self-doping characteristics in CH3NH3PbI3 films are strongly influenced by the reaction thermodynamic and kinetic processes. Furthermore, by employing mixed solvents with ethanol and isopropanol to deposit the CH3NH3PbI3 film, the charge collection and transport efficiencies are improved significantly, thereby yielding an overall enhanced cell performance.
引用
收藏
页码：842 / 847
页数：6
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