Studying the Structural and Optical Properties of ZnO:Cu Prepared by APCVD Technique

Abstract

Undoped and Cu-doped ZnO at (3-9 wt. %) thin films have been prepared by APCVD technique on glass substrates at 500ºC. The structural and optical properties of these films were studied. The results of the structural tests showed that these films are of a polycrystalline hexagonal structure with a preferred orientation in the (002) direction, the optical properties included transmittance, energy gap, absorption coefficient, reflectance, refractive index and extinction coefficient, the energy gap values were found to decrease from (3.25 to 3.15 eV) and the average transmittance was found about (90%) in the visible region.

Keywords: TCO; ZnO; APCVD; Optical properties.

PACS: 60:70