Abstract:Halide perovskites with the chemical formula ABX 3 are promising materials for solar energy harvesting, with their Asite playing an important role in giving stability for the 3D cornersharing octahedron BX 6 , forming the perovskite structure. In its inorganic family, the perovskite A-site is usually occupied by Cs, and when lighter atoms such as Na and K are introduced, the perovskite structure becomes unstable compared to other crystal structures. Here, we show that relatively low pressures, ranging from 6.1… Show more
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