Fast and Cheap Synthesis of CuO/ZnO Thin Films Made with The Spray Pyrolysis Technique
Abstract
In this paper, CuO/ZnO nanocomposites thin films were elaborated with different combination ratio of precursors (copper chloride, zinc chloride) dissolved in distilled water using the spray pyrolysis method in order to study their physicochemical properties. Nanocomposites were elaborated as thin films deposited on the surface of ordinary glass at 550°C using a cheaper and fast technique. Optical, structural and morphological properties of the latter have been examined by UV-vis, X-ray diffraction (XRD), RAMAN, SEM/EDS and AFM. XRD peaks prove the attendance of the polycrystalline models of CuO and ZnO with preferential orientation. Raman shift spectrum confirms the attendance of CuO and ZnO nanocomposites. SEM/EDS and AFM support that there is same roughness on the surface of the ordinary glass RMS=106 nm, which is suitable for the mechanism of photodegradation. In the visible region, we notice a high absorbance and high optical band gaps (Egap= 4.07 eV) that is suitable for the photodegradation of undesirable substances.
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