Abstract
In the present work we prepared conducting and transparent thin films ZnO with different solution concentrations by pyrolysis spray technique on glass substrates. These films are obtained starting from solution of zinc acetate dehydrate [Zn(CH3COO)2.2H2O] dissolved in methanol, at substrate temperature fixed T =350°C with a concentration of solution vary from 0.05-0.2 M. Our interest is on the investigation of solution concentration on the structural and optical properties of these films. The X-ray diffraction (XRD) results showed that the synthesized ZnO films are polycrystalline with preferred orientation along the (002) plane. The optical films characterization was carried out by the UV-Visible transmission. The optical gap and films disorder were deduced from the absorption spectra, The values of optical band gaps vary between 3.24 and 3.43 eV.
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