OPTIMIZATION OF NON-LEADED KSNI3-BASED PEROVSKITE SOLAR CELLS FOR PERFORMANCE ENHANCEMENT USING WXAMPS AND SCAPS-1D SIMULATION

Abstract

The non-leaded perovskite material KSnI3 is an excellent candidate for high-efficiency PSCs due to its exceptional electronic properties. It is robust, ductile in nature, and thermodynamically stable. These attributes make KSnI3 as prominent perovskite material for the synthesis of highly efficient device. The device is simulated by using wxAMPS software and the results are validated by SCAPS-1D software. In this work, we have optimized various parameters like thickness of absorber layer, operating temperature, and electron affinity to get the maximum PCE. The maximum efficiency of 24.88% with FF=92.23%, VOC=1.71 V, JSC=13.20 mA/cm2 is obtained for Cu2O as HTL and ZnSe as ETL at an absorber layer thickness of 730 nm, and at temperature of 300 K. We have employed low-cost tungsten as a back contact for better efficiency and for low-cost device.