A critical review on minimizing non-radiative recombination losses in antimony selenosulfide solar cells

Abstract

Considerable progress has been achieved in advancing antimony selenosulfide (Sb2(Sx,Se1-x)3) solar cells. Various strategies have been successfully implemented to mitigate non-radiative recombination, a primary challenge limiting device performance. Consequently, the power conversion efficiency of Sb2(Sx,Se1-x)3 solar cells has approached 11%. This review examines the origins of non-radiative recombination in Sb2(Sx,Se1-x)3 solar cells and summarizes recent advances in addressing this issue. We highlight the roles of innovative anion composition tuning, additive engineering, and interfacial engineering in enhancing device efficiency. Finally, we discuss future research directions and remaining challenges on minimizing the non-radiative recombination loss in Sb2(Sx,Se1-x)3 solar cells, offering insights into materials chemistry, physical processing, and device architecture for the continued development of antimony-based photovoltaics.