Electrodeposition and characterization of CuInSe₂ thin films for solar cells

Abstract

CuInSe₂ (CIS) thin films were prepared by electrodeposition from the de-ionized water solution consisting of CuCl₂, InCl₃, H₂SeO₃ and Na-citrate onto Mo/soda-lime glass (SLG) substrates. A thermal processing in Se atmosphere at 450 °C was carried out for the electrodepositied films to improve the stoichiometry. The composition and morphology of selenized CIS thin films were studied using energy dispersive spectroscopy (EDS) and scanning electron microscopy (SEM), respectively. X-ray diffraction (XRD) studies show that the annealing in Se atmosphere at 450 °C promotes the structural formation of CIS chalcopyrite structure.

Keywords

CuInSe₂ (CIS) / electrodeposition / solar cells

References

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