Room Temperature Synthesis of Formamidinium Lead Iodide (FAPbI3) Perovskite for Low-Cost Absorber in Solar Cells

Abstract

We have successfully synthesized FAPbI3 perovskite with desirable properties in α-phase composition of FAPbI3 that are suitable for solar cell application. The room temperature synthesis has been challenging and we report the synthesis below 100 °C, unreported hereto. The bandgap value of 1.57 eV, near optimal value of single junction solar cell make the synthesized material a suitable candidate for solar cell application.