Synthesis and photovoltaic properties of two-dimensional copolymers based on novel benzothiadiazole and quinoxaline acceptors with conjugated dithienylbenzothiadiazole pendants
作者:Yuanshuai Huang、Linglong Ye、Fen Wu、Suli Mei、Huajie Chen、Songting Tan
DOI:10.1002/pola.27888
日期:2016.3.1
Two novel acceptors of benzo[c][1,2,5]thiadiazole and quinoxaline with conjugated dithienylbenzothiadiazole pendants were first designed and synthesized for building efficient photovoltaic copolymers. Based on benzo[1,2‐b;3,4‐b′]dithiophene donors and the two acceptors, two new copolymers have been prepared by Stille coupling polymerization. The resulting copolymers were characterized by 1H NMR, gel
首先设计并合成了两个新颖的苯并[ c ] [1,2,5]噻二唑和喹喔啉与共轭二噻吩并苯并噻二唑侧基的受体,以构建有效的光伏共聚物。基于苯并[1,2- b ; 3,4- b ']二噻吩供体和两个受体,通过斯蒂勒偶联聚合反应制备了两种新的共聚物。所得共聚物通过1 H NMR,凝胶渗透色谱和热重分析进行表征。紫外可见吸收和循环伏安法测量表明,这两种共聚物在300-700 nm范围内具有强而宽的吸收,并且具有最高占据分子轨道的深能级。基于苯并[c ] [1,2,5]噻二唑基共聚物/苯基-C 71丁酸甲酯显示出2.42%的功率转换效率,这归因于其相对较好的聚光能力和活性膜形态。©2015 Wiley Periodicals,Inc. J. Polym。科学,A部分:Polym。化学 2016,54,668-677