High-efficiency inverted solar cells based on a low bandgap polymer with excellent air stability

被引:88
作者
Chu, Ta-Ya [1 ]
Tsang, Sai-Wing [1 ]
Zhou, Jiayun [1 ]
Verly, Pierre G. [1 ]
Lu, Jianping [1 ]
Beaupre, Serge [2 ]
Leclerc, Mario [2 ]
Tao, Ye [1 ]
机构
[1] Natl Res Council Canada NRC, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada
[2] Univ Laval, Dept Chim, Quebec City, PQ G1V 0A6, Canada
关键词
Inverted organic solar cells; Alternating dithienosilole and thienopyrrole-4,6-dione copolymer; ZnO nanocrystals; Processing additives; Air stability; OXIDE; ADDITIVES;
D O I
10.1016/j.solmat.2011.09.042
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
A high-efficiency inverted bulk heterojunction (BHJ) solar cell with good air stability is fabricated using annealing-free ZnO nanocrystals as an electron-transport layer and a blend of a low bandgap polymer PDTSTPD and PC(71)BM as an active layer. A power conversion efficiency as high as 6.7% has been achieved on the inverted devices with an active area of 1.0 cm(2) using nitrobenzene as a processing additive. The device is highly stable, retaining 85% of its original efficiency after being stored in air for 32 days even without encapsulation. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:155 / 159
页数:5
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