Novel photovoltaic polymers constructed from alternative donor and acceptor units having one mother structure
作者:Long Liang、Jin-Tu Wang、Chong-Yu Mei、Wei-Shi Li
DOI:10.1016/j.polymer.2013.02.036
日期:2013.4
This work presents a new strategy for the preparation of donor–acceptor conjugated copolymers, in which both donor and acceptor units derive from one mother structure. Benzo[1,2-b:4,5-b′]dithiophene-4,8-dione (BQDT) is an electron-deficient unit. From BQDT, benzo[1,2-b:4,5-b′]dithiophene (BDT) and benzo[1,2-b:4,5-b′]dithiophene-4,8-dione dioxime (BXDT) can be easily derived and serve as electron-donating
这项工作提出了一种制备供体-受体共轭共聚物的新策略,其中供体和受体单元均来自一个母体结构。苯并[1,2- b:4,5 - b ']二噻吩-4,8-二酮(BQDT)是电子缺陷单元。苯并[1,2- b:4,5- b ']二噻吩(BDT)和苯并[1,2- b:4,5 - b ']二噻吩-4,8-二酮二肟(BXDT)可以用于BQDT容易得到,并分别用作给电子体和另一个电子接受单元。基于这三个单元,聚(BDT- alt -BQDT)(PBQ-C24,带有2-癸基十四烷基侧链)和聚(BDT- alt -BXDT)(PBX-C8,具有2-乙基己基侧链)已被设计和合成。已经研究了它们的热,光学和电化学性质。PBQ-C24具有300-700 nm的宽吸收光谱,而PBX-C8只能吸收300至600 nm的光。但是,基于PBX-C8和[6,6]-苯基-C 61-丁酸甲酯(PC 61 BM)的混合物的本体