Ag2SnS3

Ag₂SnS₃ is a ternary semiconductor compound composed of silver, tin, and sulfur, belonging to the class of metal chalcogenides. This material is primarily investigated in research settings for photovoltaic and thermoelectric applications, where its tunable bandgap and mixed-valence structure offer potential advantages over binary semiconductors. Ag₂SnS₃ remains largely experimental but is notable within the broader family of earth-abundant chalcogenide semiconductors as a candidate for low-cost solar cells and waste-heat recovery systems, though it has not yet achieved widespread industrial deployment compared to established alternatives like CdTe or Cu(In,Ga)Se₂.