已经制备了由交替的电子给体(D)和-受体(A)部分组成的主链共轭线性聚合物,目的是测试它们在单材料有机太阳能电池(SMOSC)中作为光敏组分的性能。D部分由在噻吩环的3位上带有己氧基,己氧基甲基或己基的联噻吩共单元构成,而A部分由苯并噻二唑基表示。D–A聚合物是通过要求不高的氧化FeCl 3聚合工艺以高收率获得的–分别从相关的前体4,7-双(3-己氧基噻吩-2-基)苯并[ c ] [2,1]开始,3]噻二唑,4,7-双[3-(6-甲氧基己基)噻吩-2-基]苯并[ c] [2,1,3]噻二唑和4,7-双(3-己基噻吩-2-基)苯并[ c ] [2,1,3]噻二唑–分馏后的分散指数低,接近单分散状态用甲醇。对该材料的物理和结构特性进行了全面表征,然后通过使用不同的光敏组分沉积程序,对SMOSC中的光转换效率进行了测试。与开尔文探针力显微镜(KPFM)测量一致,基于共轭3-烷氧基噻吩和苯并噻二唑
已经制备了由交替的电子给体(D)和-受体(A)部分组成的主链共轭线性聚合物,目的是测试它们在单材料有机太阳能电池(SMOSC)中作为光敏组分的性能。D部分由在噻吩环的3位上带有己氧基,己氧基甲基或己基的联噻吩共单元构成,而A部分由苯并噻二唑基表示。D–A聚合物是通过要求不高的氧化FeCl 3聚合工艺以高收率获得的–分别从相关的前体4,7-双(3-己氧基噻吩-2-基)苯并[ c ] [2,1]开始,3]噻二唑,4,7-双[3-(6-甲氧基己基)噻吩-2-基]苯并[ c] [2,1,3]噻二唑和4,7-双(3-己基噻吩-2-基)苯并[ c ] [2,1,3]噻二唑–分馏后的分散指数低,接近单分散状态用甲醇。对该材料的物理和结构特性进行了全面表征,然后通过使用不同的光敏组分沉积程序,对SMOSC中的光转换效率进行了测试。与开尔文探针力显微镜(KPFM)测量一致,基于共轭3-烷氧基噻吩和苯并噻二唑
The performance of bulk heterojunction organic solar cells based on poly(3-hexylthiophene) and PCBM can be enhanced by the employment of suitably tailored partially substituted poly(oligothiophene)s. In view of this, three new polythiophenes with a different content in a hexamethylenic side chain ending with a methoxy group have been prepared and characterized completely using NMR and FT-IR techniques. The optical features of the synthesized polymers have been compared by registering their UV-Vis spectra both in different solvent-non solvent systems and in film, and their thermal stability, electrical conductivities, and photovoltaic properties have been carefully analyzed. In particular, the two samples with low side-chain content showed very promising electrical performances even if their use as the active layer in polymer-based organic photovoltaic (OPV) solar cells has not yet been fully optimized. (C) 2011 Elsevier Ltd. All rights reserved.