Performance enhancement of inverted polymer solar cells with fullerene ester derivant-modified ZnO film as cathode buffer layer

被引：29
|
作者：
Li, Pandeng [1 ,2 ]
Li, Xiaofang [1 ]
Sun, Chunming [2 ]
Wang, Guojie [2 ]
Li, Jun [2 ]
Jiu, Tonggang [2 ]
Fang, Junfeng [2 ]
机构：
[1] Hunan Univ Sci & Technol, Sch Chem & Chem Engn, Xiangtan 411201, Hunan, Peoples R China
[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Inst New Energy Technol, Ningbo 315201, Zhejiang, Peoples R China
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2014年 / 126卷
基金：
中国国家自然科学基金;
关键词：
ZnO nanoparticles; Fullerene ester derivant; Interfacial modification; Cathode buffer layer; Inverted solar cells; OPEN-CIRCUIT VOLTAGE; HIGHLY EFFICIENT; SUPRAMOLECULAR COMPLEXATION; PHOTOVOLTAIC PERFORMANCE; DESIGNED BISPORPHYRIN; BINDING STRENGTH; DERIVATIVES; MORPHOLOGY; INTERLAYER; STABILITY;
D O I：
10.1016/j.solmat.2014.03.038
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, we reported that ZnO nanoparticles (NPs) film modified with C-60 pyrrolidine tris-acid ethyl ester (PyC60) was used as cathode buffer layer in inverted polymer solar cells. The resultant device with a blend of PTB7:PC71BM as photoactive materials exhibited an open-circuit voltage (V-OC) of 0.753 V, a short-circuit current (J(SC)) of 16.04 mA cm(-2), a fill factor (FF) of 72.5%, and an overall power conversion efficiency (PCE) of 8.76%. It was higher than the control devices based on sole ZnO NPs film or ZnO: PyC60 hybrid film as cathode buffer layer. It was found that the morphology improvement of ZnO/PyC60 film contributed to reducing series loss and interfacial charge recombination. In addition, it improved the interfacial contact with photoactive layer. The results increased electron injection and collection efficiency, and improved FF. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：36 / 41
页数：6
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