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 (Nt), 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 %.