Semiconductor to metallic transition under induced pressure in CsAgBiBr double halide perovskite: a theoretical DFT study for photovoltaic and optoelectronic applications.

Inorganic double halide perovskites have a wide range of applications in low-cost photovoltaic and optoelectronic devices. In this manuscript, we have studied their structural, electronic, mechanical and optical properties using density functional theory (DFT) simulations. In this work, hydrostatic pressure is induced from 0 to 50 GPa.