Abstract

The toxicity and instability of some metal halides have made it unfovarouble to be used forthe development and fabrication of perovskites despite their good Power Conversion Efficiencies (PCE). The need to suggest good perovskite absorber materials that have excellent Dimensionality, optical band gap, and power conversion efficiencies to substitute lead in photovoltaic application is very essential in the recent research. This research work reviewed and suggested the combinable good perovskites absorber materials that can substitute lead in the perovskites. This research further discussed the possible alternative elements to replace lead in metal halide perovskites and the properties of the corresponding perovskite materials based on recent theoretical and experimental studies. In this research work other elements such as germanium, copper, antimony, bismuth, and the corresponding perovskite compounds are already showing promising properties.