Effect of Aluminum Oxide Nanoparticles Films Thickness on Optical Properties

https://doi.org/10.18535/ijsrm/v6i11.ec02
X-Ray, AFM, Optical Properties.

Authors

  • I.H. Hilal Solar energy research Center, Renewable energy Directorate, Higher education and scientific research Ministry, Baghdad, Iraq., Iraq
  • H. l. Abdullah Al- Mustansiriah University, College of Science, Department of Chemistry, Baghdad, Iraq., Iraq
  • A. M. Ibraheem Al- Mustansiriah University, College of Science, Department of Chemistry, Baghdad, Iraq, Iraq
Vol. 6 No. 11 (2018)
Engineering and Computer Science
November 3, 2018

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The aluminum oxide (Al2O3) nanoparticles thin  films has been prepared via UV-irradiation methods using metal salts (aluminum nitrate Al(NO3)3) with different  thickness (150 , 200, 300 , and 400) and measuring structural and optical properties.

The structure of the (Al2O3) nanoparticles thin films was tested with X-Ray showed that have six main diffraction features corresponding to (111), (311), (222), (400), (511) and (440) planes . The results of atomic force microscopy ( AFM )  indicated that all films have grain size about 25.97-65nm .

The optical band gap energy was decreased by the increase of thickness from (5.19-4.68) eV then used aluminum oxide as gas sensor.