ZnO thin film were synthesized by spray pyrolysis on glass substrates, using zinc chloride as precursor with different molarities 0.05M,0.1M and 0.15 M. The XRD patterns showed that the films deposited are polycrystalline with hexagonal structure and a preferred orientation of the along (002) plane. Increasing of solution molarity caused the increase the crystallite size of the films from37.01nm for 0.05M to 45.79 for 0.1M and it is slightly reduced for 0.15M. XPS studies indicates clearly the formation of the ZnO films. The optical study showed that the average transmittance enhancement when the molarity increases and reaches the maximum of about 80% for 0.1M. Further it exhibits increase in the optical band gap from 2.71 eV to 3.04 eV as the molarity increment. The room temperature electrical resistivity of ZnO films decreases when the molarity increases and reaches the optimum value of 1.92 × 10+2 (Ωcm) for 0.1M
N. Amroun, M.; Salim, K.; and H. Kacha, A.
"Molarities Effect on Structural Optical and Electrical Properties of Nanostructured Zinc Oxide deposited by Spray Pyrolysis Technique,"
International Journal of Thin Film Science and Technology: Vol. 10
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Available at: https://digitalcommons.aaru.edu.jo/ijtfst/vol10/iss1/9