Efficiency Enhancement of Perovskite Solar Cells by Pumping Away the Solvent of Precursor Film Before Annealing

被引：12
作者：
Xu, Qing-Yang [1 ]
Yuan, Da-Xing [1 ]
Mu, Hao-Ran [1 ]
Igbari, Femi [1 ]
Bao, Qiaoliang [1 ]
Liao, Liang-Sheng [1 ]
机构：
[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China
来源：
NANOSCALE RESEARCH LETTERS | 2016年 / 11卷
基金：
中国国家自然科学基金;
关键词：
Perovskite solar cells; Pump away the solvent; High-quality MAPbI(3-x)Cl(x) layer; CRYSTALLIZATION; DEPOSITION; GROWTH;
D O I：
10.1186/s11671-016-1467-9
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new approach to improve the quality of MAPbI(3-x)Cl(x) perovskite film was demonstrated. It involves annealing the precursor film after pumping away the solvent, which can decrease the influence of solvent evaporation rate for the growth of the MAPbI(3-x)Cl(x) perovskite film. The resulting film showed improved morphology, stronger absorption, fewer crystal defects, and smaller charge transfer resistance. The corresponding device demonstrated enhanced performance when compared with a reference device. The averaged value of power conversion efficiency increased from 10.61 to 12.56 %, and a champion efficiency of 14.0 % was achieved. This work paves a new way to improve the efficiency of perovskite solar cells.
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页数：6
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