Abstract Two quinoxaline-based conjugated polymers were successfully synthesized for application in polymer solar cells (PSCs). The quinoxaline unit with an electron-donating dimethylamino substituent was used as the electron-accepting (A) moiety, whereas indacenodithiophene (IDT) and indacenodithieno-thiophene (IDTT) were chosen as the electron-donating (D) groups to synthesize D-A type conjugated polymers. To investigate the photovoltaic properties of the polymers, an inverted-type device with the configuration of ITO/ZnO/polymer:PC71BM/MoO3/Ag was fabricated. It has been observed that the overall performances of the organic photovoltaic cells were significantly improved by changing the electron-donating components from IDT to IDTT. Therefore, this study can provide insights into the design and structure–property correlation of quinoxaline-based conjugated polymers for PSCs.

中文翻译：

---

用于光伏应用的喹喔啉基 DA 型共轭聚合物的合成

摘要 成功合成了两种喹喔啉基共轭聚合物，用于聚合物太阳能电池（PSCs）。具有供电子二甲氨基取代基的喹喔啉单元用作受电子（A）部分，而选择茚二噻吩（IDT）和茚二噻吩噻吩（IDTT）作为供电子（D）基团以合成DA型共轭聚合物。为了研究聚合物的光伏特性，制造了具有 ITO/ZnO/聚合物：PC71BM/MoO3/Ag 配置的倒置型器件。已经观察到，通过将给电子组件从 IDT 改为 IDTT，有机光伏电池的整体性能得到显着提高。所以，