Effects of chlorine addition to perovskite-type CH3NH3PbI3 photovoltaic devices

被引：28
作者：
Oku, Takeo [1 ]
Suzuki, Kohei [1 ]
Suzuki, Atsushi [1 ]
机构：
[1] Univ Shiga Prefecture, Dept Mat Sci, 2500 Hassaka, Hikone, Shiga 5228533, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2016年 / 124卷 / 03期
基金：
日本科学技术振兴机构;
关键词：
Microstructure; Photoconversion; Solar cell; Perovskite; SENSITIZED SOLAR-CELLS; ORGANOMETAL HALIDE PEROVSKITES; SINGLE-CRYSTALS; DIFFUSION; EFFICIENCY; LAYERS; FABRICATION; DEPOSITION; OXIDES; CL;
D O I：
10.2109/jcersj2.15250
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Effects of PbCl2 addition to perovskite CH3NH3PbI3 precursor solutions on the photovoltaic properties were investigated. TiO2/CH3NH3PbI3-xClx-based photovoltaic devices were fabricated, and the microstructures of the devices were investigated by X- ray diffraction. The structure analysis indicated phase transformation of the perovskite structure from cubic to tetragonal system by chlorine (Cl)-doping. External and internal quantum efficiencies were improved by a small amount of Cl- doping, which resulted in improvement of the efficiencies of the devices. This would be due to preservation of the cubic CH3NH3PbI3-xClx structure, and to expansion of energy gap and diffusion length of exitons by Cl-doping at the iodine sites. (C) 2016 The Ceramic Society of Japan. All rights reserved.
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收藏
页码：234 / 238
页数：5
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