Recent Progress and Challenges in A(3)Sb(2)X(9)-Based Perovskite Solar Cells

[Image: see text] The recent trends and current state of perovskite solar cells (PSCs) suggested their potential for practical applications. Since their origin, organic–inorganic lead halide (MAPbX(3)) perovskite material-based PSCs have been widely attractive to the scientific community due to their simple manufacturing process, high performance, and cost effectiveness. In spite of the high performance, the lead halide perovskite solar cells are still agonizing due to the long-term stability and toxic nature of Pb. In the last 4 years or so, many alternative perovskite or perovskite-like materials were explored for the development of Pb-free PSCs. However, antimony (Sb)-based perovskite-like materials have shown enhanced stability and average photovoltaic performance. In this mini-review, we discuss the fabrication, recent trends, and current state of the Sb-based PSCs.