Interfacial electronic and defect engineering coupling of S-scheme CsSnBr3/SnSx (x = 1, 2) heterostructures with carrier dynamics for solar cells

This work theoretically studies the photovoltaic performance and carrier dynamics of S-scheme CsSnBr 3 /SnS x ( x = 1, 2) heterostructures. The V Br(6.3%) –CsSnBr 3 /SnS-based solar cell device exhibits the highest power conversion efficiency (26.58%).