ABSTRACT
In the past decade years, Perovskite Solar cells (PSC) cells have flourished and have a very promising future. The highest reported conversion efficiency of Pb-based PSC has reached over 25% and is expected to replace silicon solar cells in the near future. However, the biggest problem of Pb-based PSC is that the Pb element is environmentally unfriendly, which hinders their commercialization, so in recent years, non-lead PSC, especially tin-based PSC, has gained widespread attention. The maximum conversion rate of tin-based PSCs has now increased from 6% to more than 12%. However, tin-based PSC has some problems of its own, which hinder its commercialization. This paper briefly introduces the development history of FASnI3, one of the perovskite materials used in tin-based PSC, and several methods to improve the efficiency and stability of PSC. Finally, the development of tin-based PSC has prospected.
