“…Perovskite, sharing the same structure as calcium titanate (CaTiO 3 ) and adhering to the ABX 3 general formula, features A representing an organic or inorganic cation (such as methylammonium (MA + ), formamidine (FA + ), Cesium (Cs + ), Rubidium (Rb + ), etc. ), B as a divalent metal cation (lead (Pb 2+ ), Tin (Sn 2+ )), and X as a halogen or pseudohalide anion (chloride (Cl – ), bromide (Br – ), iodide (I – ), thiocyanate (SCN – ), etc.). In the typical three-dimensional (3D) perovskite crystal structure, an angle-shared [BX 6 ] 4– octahedral network houses B at the center of each octahedron, while the cavities between adjacent octahedrons are occupied by A atoms. , Notably, all-inorganic perovskite CsPbX 3 (X = Cl, Br, I) demonstrates remarkable resistance to moisture, heat, and light. − In the past decade, solar cell power conversion efficiency (PCE) has achieved a certified record of 25.7%, signifying significant progress .…”