solar technology due to their exceptional structural, optical, and electronic properties. This
study thoroughly investigated, using first-principles density-functional theory (FP-DFT), the
impact of compressive and tensile strain on the structural, optical, and electrical properties of
the inorganic cubic perovskite Sr 3 AsI 3. The unstrained planar Sr 3 AsI 3 molecule exhibits
a direct bandgap of 1.265 eV value at Γ point. The bandgap of the Sr 3 AsI 3 perovskite is …