Abstract
Preferentially (111) oriented Sb-doped CuO thin film with various weight fractions (0, 1, 2 and 3 wt% of Sb) have been grown on soda-lime glass substrate (SLG) by spin coating technique. The effect of Sb doping in different amounts on the structural, morphological and optical properties of CuO films was comprehensively investigated via X-ray diffraction (XRD) unit, scanning electron microscopy (SEM) and UV–vis spectrophotometer. X-ray diffraction spectroscopy studies of the films indicate that thin films are polycrystalline nature along the preferential direction. The morphology of all CuO thin film is uniform with no cracking in the surface. The transmittance of the CuO films changed with an increase in Sb content. Ultraviolet–visible spectrophotometer measurements indicate that a radical increase in the energy band gap of the films with an increase in Sb content from 1.70 to 2.37 eV. It can be said that the optical properties of the Sb doped CuO thin film were significantly changed.
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