Browsing by Author "Benhaoua, B."

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    Optical and structural properties of copper doped zinc oxide thin films prepared via spray pyrolysis method
    (University of Oum El Bouaghi, 2021) Touati tliba, M.; Benhaoua, B.
    Un doped and copper doped ZnO (0-5 wt.%) were synthesized by spray pyrolysis technique (homemade) annealed at 375°C. Zinc acetate and copper chloride were used as sources precursor of ZnO and Cu doping, respectively. Optical and structural properties of elaborated thin films were examined by using UV-visible and X-ray diffraction. The optical study indicate that the average transmittance of all samples was more than 81% in the visible region and become more transparent after doping. Optical gap energy was observed to vary between 3.25 - 3.28eV. The structural analysis showed formation a hexagonal wurtzite structure ZnO with a strong (002) preferred orientation except (for 0.0 and 1.5 wt%), while the crystallite size is estimated 23 to 29nm for 0-5wt.% Cu doped ZnO thin films.