Optoelectronic properties and performance optimization for photovoltaic applications of R3m-RbGeX${}_3$ (X = Cl, Br, I) perovskites: A combined DFT and SCAPS-1D study

Piyush Kumar Dash, Palash Banarjee, Anupriya Nyayban +1

In pursuit of an all-inorganic non-toxic perovskite solar cell (PSC) with enhanced performance, we have investigated the rhombohedral phase of the germanium-based rubidium halide p…