Abstract
Thin films of cadmium chalcogenide (CdSe0.2Te0.8) on glass substrates have been obtained by the radio frequency magnetron sputtering with different thickness. The XRD analysis indicates that the films are cubic zinc-blende structure with no secondary phases. The UV–VIS-NIRresults show that the band gap of CdSe0.2Te0.8 varied slightly in the range 1.41–1.43 eV with the film thickness. The as-prepared CdSe0.2Te0.8 could serve as a photovoltaic absorption layer in ultra-thin solar cells.
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