In this article, two D–A-type quinoxaline-based polymers with multiple fluorine atoms, denoted by PB-QxF and PBF-QxF, were synthesized and tested for polymer solar cells (PSCs). Owing to the excellent optical, electrochemical, and charge transport properties of these polymers, impressive PCEs of 10.99 and 13.96% were achieved by the inverted-type lab-scale spin-coated devices based on PB-QxF and PBF-QxF, respectively, in the presence of a nonfullerene Y6 acceptor. In addition, to evaluate the feasibility of the process for mass production, a scalable roll-to-roll (R2R) slot-die coating process was attempted to fabricate PSCs on flexible substrates. Notably, the best PCE of 9.63% was obtained using an R2R processed additive-free PSC based on PBF-QxF, which is the highest value among all R2R processed PSCs. Moreover, the device with PBF-QxF exhibited good thickness tolerance to PCE up to 350 nm, which is one of the key requirements for R2R compatible materials.

中文翻译：

---

卷对卷兼容的喹喔啉类聚合物向高性能聚合物太阳能电池发展

在本文中，合成了两种具有多个氟原子的DA型喹喔啉基聚合物，分别用PB-QxF和PBF-QxF表示，并进行了聚合物太阳能电池（PSC）的测试。由于这些聚合物具有出色的光学，电化学和电荷传输性能，分别基于PB-QxF和PBF-QxF的倒置型实验室规模旋涂设备分别获得了10.99％和13.96％的令人印象深刻的PCE。非富勒烯Y6受体的存在。另外，为了评估该批量生产方法的可行性，尝试了可扩展的卷对卷（R2R）缝模涂布工艺，以在柔性基板上制造PSC。值得注意的是，使用基于PBF-QxF的R2R处理的无添加剂PSC可获得9.63％的最佳PCE，这是所有R2R处理的PSC中最高的值。此外，