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Structural and optical properties of Na doped ZnO nanocrystalline thin films synthesized using sol-gel spin coating technique

Journal of Sol-Gel Science and Technology, ISSN: 0928-0707, Vol: 67, Issue: 1, Page: 50-55
2013
  • 22
    Citations
  • 0
    Usage
  • 29
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    22
    • Citation Indexes
      22
  • Captures
    29

Article Description

Sodium (Na) doped Zinc oxide (ZnO) thin films have been deposited on a glass substrate by the sol-gel spin coating method. Effect of doping with various percentages of Na at a particular annealing temperature of 500 C is studied. The samples were characterized by X-ray diffraction (XRD), micro-photoluminescence, Raman and Polarized Raman spectroscopy. The X-ray diffraction and micro-Raman spectroscopy confirmed the presence of Na substitution in zinc oxide and the wurtzite structure of the lattice is retained. An enhancement of resonant Raman scattering processes as well as longitudinal optical phonon overtones up to the fifth order were observed in the micro Raman spectra. The similar values of depolarization ratios obtained from Polarized Raman studies recommend no change in the symmetry. Photoluminescence showed a strong emission peak in the near UV at 3.2 eV and negligible visible emission. © 2013 Springer Science+Business Media New York.

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