Investigating the potential of lead‐free double perovskite Cs2AgBiBr6 material for solar cell applications: A theoretical study

• DOI: 10.1002/er.8099
• Publication Date: 2022-05-23T01:54:18Z
• Authors: Abhishek Raj; Manish Kumar; Arvind Kumar; Amel Laref; Avneesh Anshul
• Keywords: Bismuth; Lead (geology); Equivalent series resistance

Recently, Silver-Bismuth based lead-free double perovskite solar cells (PSCs) have established their significance as a possible substitute for lead-based absorber in the PSCs due to its higher stability and nontoxic properties. In present work, Cs2AgBiBr6 compound has been used an layered structure of PSC. This studied details physical properties (electronic optical) using first principle calculation. Additionally, PSC is designed SACPS-1D simulation software with cell configuration FTO/TiO2/Cs2AgBiBr6/Spiro-OMeTAD/Au various parameters useful applications PSCs. Initially, device optimized under experimental counterpart validate study further other material such band-gap, defect density, thickness absorber, series resistance operating temperature are deliver improved performance. The final exhibited power conversion efficiency (PCE) 6.68%, open-circuit voltage (VOC) 0.90 V, current density (JSC) 11.09 mA/cm2 fill factor (FF) 66.61%. Further, different ETLs TiO2, SnO2, ZnO, IGZO PCBM simulated proposed found TiO2 SnO2 suitable ETL candidate