An alternating low band-gap polyfluorene for optoelectronic devices

被引:110
作者
Perzon, Erik [1 ]
Wang, Xiangjun
Admassie, Shielis
Inganas, Olle
Andersson, Mats R.
机构
[1] Chalmers Univ Technol, Dept Biol & Chem Engn, SE-41296 Gothenburg, Sweden
[2] Linkoping Univ, SE-58183 Linkoping, Sweden
关键词
conjugated polymers; polymer synthesis; plastic solar cells;
D O I
10.1016/j.polymer.2006.03.110
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
An alternating polyfluorene (APFO) with low band-gap segments named APFO-Green1 has been designed and synthesized for use in optoelectronic devices. The low band-gap segment consists of an electron acceptor (A), fenced by electron donors (D). This D-A-D configuration leads to a partial charge transfer in the polymer backbone, and thereby a low band-gap (1.3 eV). Results obtained from characterization of APFO-Green1 include light absorption and emission at extended wavelengths as well as high hole mobility. Furthermore, blends of the polymer with different fullerene derivatives exhibit unusually high photovoltaic performance at long wavelengths, making this type of conjugated polymers promising for plastic solar cell applications. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4261 / 4268
页数:8
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