Single-material organic solar cells with fully conjugated electron-donor alkoxy-substituted bithiophene units and electron-acceptor benzothiadiazole moieties alternating in the main chain
作者:Martina Marinelli、Massimiliano Lanzi、Andrea Liscio、Alberto Zanelli、Mattia Zangoli、Francesca Di Maria、Elisabetta Salatelli
DOI:10.1039/d0tc00541j
日期:——
7-bis[3-(6-methoxyhexyl)thiophen-2-yl]benzo[c][2,1,3]thiadiazole and 4,7-bis(3-hexylthiophen-2-yl)benzo[c][2,1,3]thiadiazole – with low dispersity indexes, close to the monodisperse state, after fractionation with methanol. The materials have been thoroughly characterized for their physical and structural properties and then tested for photoconversion efficiency in SMOSCs by using different deposition procedures
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