Recent advances toward efficient and stable tin‐based perovskite solar cells

Abstract Organic‐inorganic halide perovskite solar cells (PSCs) are emerging new generation cost‐effective photovoltaic technology. However, the public concern about the toxic lead contained in state‐of‐art PSCs has cast a shadow on their prospect for commercialization. Therefore, increasing attention has been paid to lead‐free tin‐based perovskites, which have the potential to achieve comparable photovoltaic performance to their lead‐based counterparts. However, the development of high‐performance tin‐based PSCs is seriously undermined by the intrinsic poor stability of divalent tin in the perovskites. With the efforts to overcome the stability issue, encouraging ~10% efficiencies have been currently achieved. In this review, we summarize the recent advances toward efficient and stable tin‐based PSCs and offer a perspective for future study. Abstract image