The synthesis, characterization, optical and electrochemical properties of a regioregular copolymer, poly(3-octylthiophene-2,5-diyl-co-3-decyloxythiophene-2,5-diyl) (POT-co-DOT), and an alternating regioregular copolymer poly(9,9-dioctylfluorene)-2,7-diyl-alt-[4,7-bis(3-decyloxythien-2-yl)-2,1,3-benzothiadiazole]-5′,5″-diyl} (PF-co-DTB) is disclosed. The incorporation of 3-alkoxythiophene units onto the conjugated backbones enhances the electron-donating property of the polymer and lowers its bandgap. The fabrication and performance of photovoltaic cells with bulk heterojunction architecture based on blends of these copolymers with PCBM are also described.
本文介绍了一种规则共聚物,聚(
3-辛基噻吩-2,5-二基-3-癸氧基
噻吩-2,5-二基)(POT-co-DOT),以及一种交替规则共聚物聚(9,9-二辛基
芴)-2,7-二基- [4,7-双(3-癸氧基
噻吩-2-基)-
2,1,3-苯并噻二唑]-5',5" -二基} (PF-co-DTB) 的合成、表征、光学和电
化学性质。在共轭主链上引入3-烷氧基
噻吩单元可以增强聚合物的电子给体性能并降低其带隙。文中还描述了基于这些共聚物和PCBM混合物的体异质结构光伏电池的制备和性能。