Self-organized buffer layers in organic solar cells

被引:242
作者
Wei, Qingshuo [1 ]
Nishizawa, Takeshi [1 ]
Tajima, Keisuke [1 ]
Hashimoto, Kazuhito [1 ,2 ]
机构
[1] Univ Tokyo, Bunkyo Ku, Dept Appl Chem, Sch Engn, Tokyo 1138656, Japan
[2] JST, ERATO, HASHIMOTO Light Energy Convers Project, Bunkyo Ku, Tokyo 1138656, Japan
关键词
D O I
10.1002/adma.200792876
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A fullerene derivative with a fluorocarbon chain is applied in bulk-heterojunction polymer solar cells (see figure). When a small amount of F-PCBM is mixed in, it spontaneously migrates to the surface of the organic layer during spin-casting owing to the low surface energy of the fluorocarbon. A very thin buffer layer between the polymer and the metal electrode is formed in one step, resulting in improved photovoltaic performance.
引用
收藏
页码:2211 / +
页数:7
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