Mainul Hossain

Design and Optimization of Cs2AgBiBr6/AgBiS2 Two-Terminal Tandem Solar Cells for High-Efficiency Lead-Free Photovoltaics

Abstract The ternary chalcogenide AgBiS2 has emerged as a promising lead-free photovoltaic absorber due to its high optical absorption, tunable bandgap (∼1.3 eV), and nontoxic composition. In this work, we present a comprehensive numerical study of AgBiS2-based thin-film solar ce...