Conventional perovskites solar cells have been afflicted with serious hysteresis effect, resulting in difficult to accurate the real power conversion efficiency of devices. Here, an additive of KSCN was applied to enhance the crystallization of perovskite crystals, increased the perovskite grain size, reduced the density of defects, led to a high-quality thin film. Correspondingly, devices with a power conversion efficiency of 19.23% and fill factor of 75.08% under AM 1.5G 100 mW cm⁻² irradiation were achieved. In comparison with typical devices, these solar cells showed improved photovoltaic performance, stability, reproducibility, carrier mobility and lower hysteresis effect, which was attributed to the high-quality thin film. Our work demonstrated a facile and effective approach for fabricating solar cells with no-hysteresis and high-performance towards commercialization.

常规的钙钛矿太阳能电池已经受到严重的磁滞效应的困扰，从而导致难以精确计算器件的实际功率转换效率。在这里，使用KSCN添加剂来增强钙钛矿晶体的结晶，增加钙钛矿的晶粒尺寸，减少缺陷的密度，从而得到高质量的薄膜。相应地，在AM 1.5G 100 mW cm ^-2下功率转换效率为19.23％，填充因子为75.08％的器件达到辐射。与典型的设备相比，这些太阳能电池表现出更高的光伏性能，稳定性，可重复性，载流子迁移率和更低的磁滞效应，这归因于高质量的薄膜。我们的工作证明了一种简便而有效的方法来制造具有无滞后性和高性能的太阳能电池，以实现商业化。