Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2768

Full Length Research Paper

Persistent hydrophilicity for Titanium oxide (TiO2) thin films by Silicon oxide (SiO2) over nanolayers

Maryam Yaghoubi
  • Maryam Yaghoubi
  • Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran, Iran.
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  •  Received: 18 June 2014
  •  Accepted: 21 July 2014
  •  Published: 30 August 2014

Abstract

SiO2 thin layers in thicknesses (1, 5, 10, 18 nm) on TiO2 thin layer in thickness 79 nm deposited by reactive RF sputtering technique. The deposited films were heat treated at temperatures (200, 400, 500, 600°C). The surface properties of thin films by atomic force microscopy (AFM), surface chemical composition by X-ray photoelectron spectroscopy (XPS) and self-cleaning effect in bi layers, were studied. In addition, enhanced hydrophilicity property in the films under the effect of annealed temperature and persistence without UV light illumination were evaluated.

 

Key words: Nanolayers, X-ray photoelectron spectroscopy (XPS), hydrophilicity, annealed temperature.

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