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  • Chem Sci Trans., 2013, 2(S1),  pp S276-S280  

    DOI:10.7598/cst2013.33

    Research Article

    Influence of Lead Substitution in Zinc Oxide Thin Films

  • I. INIGO VALAN, S. RAJA, K. RAMAMURTHI, V. NARAYANAN and A. STEPHEN
  • Department of Nuclear Physics, University of Madras, Guindy Campus, Chennai, India
    Crystal Growth and Thin Films Lab, Bharathidasan University, Tiruchirappalli, India
    Department of Physics and Nanotechnology, SRM University, Kattankulathur, India
    Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai, India
  • Abstract

    Lead substituted zinc oxide thin films were deposited onto the glass substrates at 400 oC by spray pyrolysis technique. The influence of lead substitution concentration (025 wt. %) on the structural, morphological and optical properties of zinc oxide thin films were studied. X-ray diffraction (XRD) analysis confirms that all the films have a typical hexagonal wurtzite structure having high preferred orientation along (002) crystallographic direction. The Scanning Electron Microscopy (SEM) reveals the deterioration of crystallinity as we increase the substitution percentage. The average transmittance is maximum for 25 wt. % ZnO:Pb∼93% in the visible region (400800 nm). Optical band gap energy has a slight increase from 3.21 eV to 3.36 eV.

    Keywords

    Thin films, Spray pyrolysis, Optical transmittance

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