First-principles calculations to investigate structural, electronics, optical and elastic properties of Sn-based inorganic Halide-perovskites CsSnX3 (X = I, Br, Cl) for solar cell applications

Jalil Ur Rehman, Muhammad Usman, Sana Amjid, Muhammad Sagir, Muhammad Bilal Tahir, Abid Hussain, Iftikhar Alam, Ruqia Nazir, Hussein Alrobei, Sami Ullah, Mohammed A. Assiri