Abstract In this work, we study the modification effect on the performance of organic solar cells (OSCs) by introducing the ZnO dual doped by Al(NO3)3:PEIE cathod interlayer. The results showed that, with a proper doping concentration, the Al(NO3)3 doped ZnO (ZnO:Al), PEIE doped ZnO (ZnO:PEIE) and Al(NO3)3:PEIE dual doped ZnO (ZnO:Al:PEIE) cathode interlayers all exhibited the superiority for their application on inverted organic solar cells (iOSCs), due to their reduced work function (WF), better properties of electron transport, smoother interface contact between the electrode and active layer, thus leading to improvement of device performance. Based on PTB7-Th:PC71BM, the power conversion efficiency (PCE) got dramatically increased to 9.51% with PEIE:Al dual-doped ZnO, compared to the reference PCE of 8.27% with pure ZnO.

中文翻译：

---

有机太阳能电池用有机电解质和无机金属离子掺杂的高性能ZnO阴极界面

摘要 在这项工作中，我们研究了通过引入由 Al(NO3)3:PEIE 阴极夹层双掺杂的 ZnO 对有机太阳能电池 (OSC) 性能的改性作用。结果表明,在适当的掺杂浓度下,Al(NO3)3掺杂ZnO(ZnO:Al)、PEIE掺杂ZnO(ZnO:PEIE)和Al(NO3)3:PEIE双掺杂ZnO(ZnO:Al:PEIE) ) 阴极夹层在倒置有机太阳能电池 (iOSC) 上的应用均表现出优越性，因为它们的功函数 (WF) 降低，电子传输性能更好，电极与活性层之间的界面接触更平滑，从而提高了设备性能。基于 PTB7-Th:PC71BM，PEIE:Al 双掺杂 ZnO 的功率转换效率 (PCE) 显着提高至 9.51%，而纯 ZnO 的参考 PCE 为 8.27%。