Although the power conversion efficiency (PCE) of perovskite solar cells (PSCs) increases rapidly, there are still some issues that limit their commercialization. The perovskite is sensitive to the water molecules, increasing the difficulty in the preparation of perovskite films in ambient condition. Most high-performance PSCs based on conventional method are required to be prepared in inert atmosphere condition, which increase the fabrication cost. To fabricate the high-quality perovskite in ambient condition, we preheated the substrates and selected the proper anti-solvent. As a result, the target perovskite films show a better crystallinity compared with perovskite film prepared via the conventional one-step deposition method in ambient condition. The PSCs prepared in ambient condition yield the improved PCE of 16.89% from a PCE of 11.59%. Compared with the reference devices, the performance stability of target PSCs is much better than that of reference PSCs.

尽管钙钛矿太阳能电池（PSC）的功率转换效率（PCE）迅速提高，但是仍然存在一些限制其商业化的问题。钙钛矿对水分子敏感，从而增加了在环境条件下制备钙钛矿薄膜的难度。要求大多数基于常规方法的高性能PSC在惰性气氛条件下进行制备，这会增加制造成本。为了在环境条件下制造高质量的钙钛矿，我们将基材预热并选择合适的抗溶剂。结果，与在环境条件下通过常规的一步沉积法制备的钙钛矿膜相比，目标钙钛矿膜表现出更好的结晶度。在环境条件下制备的PSC的PCE从11.59％改善为16.89％。