Annealing Effect on Performance and Morphology of Photovoltaic Devices Based on Poly(3-hexylthiophene)-b-Poly(ethylene oxide)

被引:45
作者
Gu, Zhijie [1 ]
Kanto, Tatsuya [1 ]
Tsuchiya, Kousuke [1 ]
Shimomura, Takeshi [1 ]
Ogino, Kenji [1 ]
机构
[1] Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, Koganei, Tokyo 1848588, Japan
关键词
annealing; block copolymers; phase separation; photovoltaic device; poly(3-hexylthiophene); POLYMER SOLAR-CELLS; SELF-ORGANIZATION; SOLVENT; COPOLYMERS; ROUTE; FILMS; POLYTHIOPHENE; BLENDS;
D O I
10.1002/pola.24696
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Novel block copolymers, poly(3-hexylthiophene)-b-poly(ethylene oxide) (P3HT-b-PEO) were synthesized via Suzuki coupling reaction of P3HT and PEO homopolymers. The copolymers were characterized by NMR, gel permeation chromatography, differential scanning calorimeter, and UV-vis measurements. A series of devices based on the block copolymers with a fullerene derivative were evaluated after thermal or solvent annealing. The device using P3HT-b-PEO showed higher efficiency than using P3HT blend after thermal annealing. Phase-separated structures in the thin films of block copolymer blends were investigated by atomic force microscopy to clarify the relationship between morphologies constructed by annealing and the device performance. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 2645-2652, 2011
引用
收藏
页码:2645 / 2652
页数:8
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