Contrasting the Material Chemistry of Cu2ZnSnSe4 and Cu2ZnSnS(4–x)Sex

摘要

abstract: Earth-abundant sustainable inorganic thin-film solar cells, independent of precious elements, pivot on a marginal material phase space targeting specific compounds. Advanced materials characterization efforts are necessary to expose the roles of microstructure, chemistry, and interfaces. Herein, the earth-abundant solar cell device, Cu[subscript 2]ZnSnS[subscript (4–x)]Se[subscript x], is reported, which shows a high abundance of secondary phases compared to similarly grown Cu[subscript 2]ZnSnSe[subscript 4].