In the last several years, perovskite solar cells (PSCs) are faced with big problems in the stability issues, which also occur in the Interface modification materials. Herein, CsPbBr_1.5I_1.5 quantum dots (QDs) encapsulated in ZrO₂ sol is introduced to improve device stability to some extent. The encapsulated QDs can improve the morphology of the perovskite layer and effectively passivate the perovskite film. The device fabricated by CsPbBr_1.5I_1.5 QDs encapsulated achieves a power conversion efficiency (PCE) of 21.23%, corresponding to 18.86% for the unmodified control devices. The performance of the device based on CsPbBr_1.5I_1.5/ZrO₂ nanocomposites modified remains 81.8% of initial PCE after 500 h.

中文翻译：

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ZrO2封装的量子点增强钙钛矿太阳能电池的稳定性

在过去的几年中，钙钛矿太阳能电池（PSC）面临着稳定性问题的大问题，这也发生在界面改性材料中。在此，引入封装在ZrO ₂溶胶中的CsPbBr _1.5 I _1.5量子点（QD）以在一定程度上提高器件稳定性。封装的量子点可以改善钙钛矿层的形貌并有效钝化钙钛矿薄膜。由封装的 CsPbBr _1.5 I _1.5 QDs制造的器件实现了 21.23% 的功率转换效率 (PCE)，对应于未修改的控制器件的 18.86%。基于CsPbBr _1.5 I _1.5 /ZrO ₂的器件性能 500 小时后，改性的纳米复合材料仍为初始 PCE 的 81.8%。