Russian Journal of Physical Chemistry A

, Volume 88, Issue 13, pp 2446–2450 | Cite as

Influence of laser irradiation on the optical properties of nano-sized powder of metal oxide

  • W. A. Farooq
  • S. M. Ali
  • Walid Tawfik
  • Amanullah Fatehmulla
  • M. Aslam
  • A. S. Al-Dwayyan
  • M. S. AlSalhi
Photochemistry and Magnetochemistry
First Online:
Received:
  • 70 Downloads

Abstract

ZnO Nano powders were prepared by co-precipitation method which includes post-oxidation and annealing in air. Influence of laser irradiation was carried out using 355 nm laser on the physical properties of ZnO nanoparticles. SEM studies reveal agglomeration of grains resulting into enlargement and deformation of the nanoparticles. XRD pattern exhibited decrease in FWHM which is a clear evidence of the increase in crystallite size due to laser irradiation. Optical properties showed decrease in the band gap of the laser irradiated Nano powders. The observed results indicated the UV laser irradiation increases the ZnO nanoparticles crystallinity that affects the optical properties of the ZnO.

Keywords

nanoparticles laser irradiation co-precipitation post-oxidation 

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Copyright information

© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  • W. A. Farooq
    • 1
  • S. M. Ali
    • 1
  • Walid Tawfik
    • 1
    • 2
  • Amanullah Fatehmulla
    • 1
  • M. Aslam
    • 1
  • A. S. Al-Dwayyan
    • 1
  • M. S. AlSalhi
    • 1
  1. 1.Department of Physics and Astronomy College of ScienceKing Saud UniversityRiyadhSaudi Arabia
  2. 2.Department of Environmental Applications, NILES National Institute of LaserCairo UniversityCairoEgypt

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