一步溶液法制备有机金属卤化物钙钛矿薄膜的研究进展

Progress of the one-step solution method in organic metal halide perovskite fabrication

有机金属卤化物钙钛矿太阳能电池兼具很高的光电转换能力和低成本制备优势,俨然已成为最具发展潜力的一类光伏技术。目前,伴随着钙钛矿薄膜质量的不断提升,该技术的最高光电转换效率已经超过22%。一步溶液法制备技术操作简单、商业应用前景广阔,在简要介绍钙钛矿薄膜的制备工艺基础上,重点分析了一步溶液制备法中提高薄膜质量的4种方法,并综述了相关研究进展;最后针对现有钙钛矿太阳能电池存在的问题提出发展展望。

The organic-metal halide perovskite solar cells are showing their great commercial potential due to their excellent power conversion ability and low cost fabrication. Up to date, their power conversion efficiency has been boosted to more than 22% profiting from the sharply improved perovskite film morphology. The onestep solution fabrication that is easy going for massive production, is playing a key role in the development of perovskite solar cells. Herein we first made a brief introduction about the fabrication method for perovskite film, then stressed on analyzing the four strategies to improve the film morphology in one-step solution method, and summarizing their recent advancement, finally forecasted the further development in this field based on the present challenging they are facing.