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Comparison between the optical and surface properties of TiO2 and Ag/TiO2 thin films prepared by sol-gel process

Published online by Cambridge University Press:  17 May 2011

Marcelo M. Viana  and
Nelcy D. S. Mohallem
Marcelo M. Viana
Affiliation:
Laboratory of Nanostructured Materials, Chemistry Department, UFMG, Belo Horizonte-MG, Brazil
Nelcy D. S. Mohallem*
Affiliation:
Laboratory of Nanostructured Materials, Chemistry Department, UFMG, Belo Horizonte-MG, Brazil
*
*[email protected]
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Abstract

Colloidal precursor solutions, obtained from a mixture of titanium isopropoxide, isopropyl alcohol and silver nitrate, were used to fabricate amorphous TiO2 and Ag/TiO2 thin films by sol-gel process. The films were deposited on borosilicate substrates, which were heated at 400 °C for 30 minutes and cooled rapidly to the formation of amorphous coatings. The films were investigated by X-ray diffraction, scanning electron microscopy, atomic force microscopy and UV-vis spectroscopy. The thickness, roughness, refraction index, and particle size of the TiO2 and Ag/TiO2 films were determined and compared. Finally, hydrophobic-hydrophilic property was evaluated to the thin films produced.

Keywords

amorphousthin filmsol-gel
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1352: Symposium GG – Titanium Dioxide Nanomaterials , 2011 , mrss11-1352-gg10-15
Copyright
Copyright © Materials Research Society 2011

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References

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