Synthesis and characterization for structural and optical properties of FASnI2Br for perovskite solar cell applications

Abstract

Solar cells being a clean and renewable energy source, help achieve sustainable development goal number 7; Affordable and clean energy. Perovskite solar cells have attracted the attention of researchers due to their exemplary high-power conversion efficiencies of above 25 %. An example of a material that has been used as a perovskite active layer is FASnI3.For tunability of the band gap and enhancing stability, this can be doped with halide materials. In this study, FASnI2Br was synthesized, followed by structural characterization using XRD and optical characterization using UV–vis. From the fabricated devices, FF of 50.44 %, PCE of 3.57 %, Jsc of 12.46 mA/cm2 , Voc of 0.44 V and MPP of 3.57 mW/cm2 were obtained. This was a good indication for an active material for perovskite solar cells.