The Determination of the Mechanical, Optoelectronic, Structural and Transport Attributes of Double Perovskite AInGaBr (A=K, Rb, Cs) Halides for Renewable Energies: A DFT Study.

Safer and more environmentally friendly alternatives to lead-based perovskites include lead-free halide perovskites, which retain good optoelectronic capabilities while reducing environmental toxicity. They also align better with ecological and regulatory standards for green technologies. In this manuscript, we have presented the first principles analysis of the physical traits of AInGaBr (A=K, Rb, Cs).