Fabrication and characterization of CuInSe₂CdS/ZnO thin film solar cells

Abstract

Efficient thin film solar cells were fabricated using CulnSe absorber fi lm s obtained from the selenization (in H,Se/Ar atmosphere) o f InSe/Cu and InSe/Cu/lnSe metallic alloys. The material properties o f the CuInSe₂ layers and efficiencies of completed devices were critically influenced by the nature of the metallic alloys before the selenization step. Optimum material properties were obtained when InSe/Cu/InSe alloys were selenized in H₂Se/Ar while ramping the temperature between 200 °C and 400 °C.