Performance and stability of electrodeposited mixed perovskites $\text{MAPbI}_{3-\mathrm{x}}\text{Cl}_{\mathrm{x}}$ and $\text{MA}_{1-\mathrm{y}}\text{FA}_{\mathrm{y}}\text{PbI}_{3-\mathrm{x}}\text{Br}_{\mathrm{x}}$

Abstract

Electrodeposition was investigated in this work as a substitute method to develop large area perovskite active layer for solar device application. Along with the simple MAPbI3 perovskite, the deposition of mixed $\text{MAPbI}_{3-\mathrm{x}}\text{Cl}_{\mathrm{x}}$ and $\text{MA}_{1-} {}_{\mathrm{y}}\text{FA}_{\mathrm{y}}\text{PbI}_{3-\mathrm{x}}\text{Br}_{\mathrm{x}}$ perovskites was studied. This present study is one of its kind, since these mixed perovskite were never developed using electrodeposition before. It was detected that using these mixed perovskites in a solar device enhances its photovoltaic activity. It also enhances its stability when evaluated in mild ageing conditions (40°C, under vacuum or ambient atmosphere) during 500h. The different perovskites fabricated using electrodeposition experience a maturation phenomenon.