Influence of Al2O3:TiO2 ratio on the structural and optical properties of TiO2-Al2O3 nano-composite films produced by sol gel method

Arier U. O. A. , Tepehan F. Z.

COMPOSITES PART B-ENGINEERING, vol.58, pp.147-151, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 58
  • Publication Date: 2014
  • Doi Number: 10.1016/j.compositesb.2013.10.023
  • Page Numbers: pp.147-151


In this work, TiO2-Al2O3 nano-composite films were deposited on glass substrates by the sol gel method. The structural and optical properties of TiO2-Al2O3 nano composite films were characterized for different Al2O3:TiO2 volume ratio in TiO2-Al2O3 solution. The crystal size of TiO2 nanoparticles in TiO2-Al2O3 nanocomposite films was determined for the different Al2O3:TiO2 volume ratios. Band gap energy values of the films were controlled by changing Al2O3:TiO2 ratios. The properties of TiO2-Al2O3 nano-composite films were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), ultraviolet-visible spectroscopy (UV-vis), scanning electron microscopy (SEM), spectrophotometer (Perkin-Elmer), and Fourier transform infrared spectroscopy (FTIR). SEM results showed flower-like TiO2-Al2O3 nano-composite films. (C) 2013 Elsevier Ltd. All rights reserved.