A straightforward synthesis is reported for four structurally simple donor–acceptor conjugated polymers based on an alkylated difluorobenzotriazole and either unsubstituted bithiophene (T2) or thienylvinylthiophene (TVT) co‐monomers. Two solubilizing sidechains are investigated in which the position of the branching point is moved away from the conjugated backbone. Optoelectronic measurements and density functional theory calculations show very similar energetic properties between the polymers, with a slightly narrower bandgap for the vinylene incorporating TVT polymers as a result of extended conjugation. Transistor measurements demonstrate that the simplest polymer, containing a readily available 2‐decyltetradecyl sidechain with a T2 co‐monomer, exhibits the best device performance, with an average saturated mobility of 0.2 cm² V⁻¹ s⁻¹.

中文翻译：

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结构简单但高性能的供体-受体聚合物，用于场效应晶体管应用

据报道，一种简单的合成方法是基于烷基化的二氟苯并三唑和未取代的联噻吩（T2）或噻吩乙烯基噻吩（TVT）共聚单体的四种结构简单的供体-受体共轭聚合物。研究了两个增溶性侧链，其中分支点的位置远离共轭主链。光电测量和密度泛函理论计算表明，聚合物之间的能量性质非常相似，由于共轭作用的延长，掺入TVT聚合物的亚乙烯基的带隙略窄。晶体管测量表明，最简单的聚合物包含易于获得的2-癸基十四烷基侧链和T2共聚单体，具有最佳的器件性能，平均饱和迁移率为0.2 cm² V ^-1 s ^-1。