LAUSR

Abstract Ag 2 S quantum dot is a semiconductor with narrow band-gap, high chemical stability, broad light absorption, photovoltaic effect and photoluminescence, which makes it a good photovoltaic material for fabricating solar cells. Many works have been conducted to demonstrate the synthesis of Ag 2 S nanostructure, as well as their applications in solar cells. In this article, the recent development of methods for synthesizing Ag 2 S quantum dots and Ag 2 S-based solar cells is reviewed. Especially metal oxide/Ag 2 S-based solar cells, Ag 2 S quantum dots, dye co-sensitized solar cells and inorganic-organic hybrid solar cells have been detailed. Ag 2 S quantum dots, with broad light absorption band and extensive absorption coefficient, have shown large potential in fabricating quantum dot-sensitized solar cells as well as polymer solar cells.