Novel Cu2BaSn(S,Se)4 thin film fabricated by solution process and its application in solar cells
Novel semiconductor Cu 2 BaSn(S,Se) 4 thin film with orthorhombic structure has been successfully fabricated via solution process. XRD、EDS、XPS and SEM were used to investigate the structure、elemental composition、valence states and morphology of the Cu 2 BaSn(S,Se) 4 thin film . Different selenization temperatures that affected CBTSSe thin film quality were investigated. The photoresponse property of Cu 2 BaSn(S,Se) 4 thin film indicated that it had potential application in low-cost thin film solar cells. The solution process to fabricate Cu 2 BaSn(S,Se) 4 /CdS heterojunction thin film solar cells demonstrated that Cu 2 BaSn(S,Se) 4 thin film could be applied as absorb layer in the thin film solar cells.
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