Abstract Two new binary polymers ( P16 , P20 ) and three random terpolymers ( P17 , P18 , P19 ) with different ratios of the A1 (DPP) and A2 (BTTQ) acceptors in the polymer chains were developed and synthesized. Their optical and electrochemical properties were studied. The random terpolymers ( P17 , P18 , P19 ) possess wider absorption spectra than the binary D–A copolymers ( P16 , P20 ). It was shown that the position of absorption bands and energy levels can be easily tuned by varying the molar ratios of the two different acceptor units in the terpolymer backbone. The synthesized random terpolymers can be used as efficient donor materials for fullerene and non-fullerene polymer solar cells.

中文翻译：

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用于聚合物太阳能电池的基于二酮吡咯并吡咯和苯并二噻唑/喹喔啉单元的新型无规三元共聚物的合成及光学和电化学性能

摘要 开发并合成了两种新型二元聚合物（P16、P20）和三种无规三元共聚物（P17、P18、P19），它们在聚合物链中具有不同比例的A1（DPP）和A2（BTTQ）受体。研究了它们的光学和电化学性质。无规三元共聚物（P17、P18、P19）比二元D-A共聚物（P16、P20）具有更宽的吸收光谱。结果表明，通过改变三元共聚物主链中两种不同受体单元的摩尔比，可以很容易地调整吸收带的位置和能级。合成的无规三元共聚物可用作富勒烯和非富勒烯聚合物太阳能电池的有效供体材料。