All‐Inorganic CsPbX 3 Perovskite Solar Cells: Progress and Prospects

Abstract Recently, lead halide‐based perovskites have become one of the hottest topics in photovoltaic research because of their excellent optoelectronic properties. Among them, organic‐inorganic hybrid perovskite solar cells (PSCs) have made very rapid progress with their power conversion efficiency (PCE) now at 23.7 %. However, the intrinsically unstable nature of these materials, particularly to moisture and heat, may be a problem for their long‐term stability. Replacing the fragile organic group with more robust inorganic Cs + cations forms the cesium lead halide system (CsPbX 3 , X is halide) as all‐inorganic perovskites which are much more thermally stable and often more stable to other factors. From the…

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  National Natural Science Foundation of China

  Award: 61704099