Numerical simulation of highly efficient Cs2AgInBr6-based double perovskite solar cell using SCAPS 1-D

Lead-free Double Perovskite Solar Cells (DPSCs) have garnered significant research attention in recent times because of its viability as a promising perovskite absorber layer in the device architecture along with its reasonable cost, remarkable stability and high performance. The lead and non-biodegradable material-based Perovskite solar cells (PSCs) are still a hurdle to its commercialization. We have investigated a non-toxic inorganic material i.e., Cs₂AgInBr₆ using SCAPS-1D software. We optimized various parameters like Defect density (N_t), thickness, operating temperature and electron affinity (χ) of perovskite absorber layer (Cs₂AgInBr₆). Effect of various ETLs and HTLs on the performance device is also analyzed. The Simulation result shows that at an absorber layer thickness of 600 nm, the Cs₂AgInBr₆-based DPSC has achieved maximum efficiency of 26.9 %.