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Structure and optical properties of chemically synthesized titanium oxide deposited by evaporation technique |
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| Authors: | HM Ali MM Abou-Mesalam MM El-Shorbagy |
| Institution: | a Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt b Nuclear Fuel Technology Department, Hot Labs. Centre, Atomic Energy Authority, Postal Code 13759, Cairo, Egypt c Physics Department, Faculty of Science, Al-Baha University, Post Office 1034, Postal Code 65431, Kingdom of Saudi Arabia d Chemistry Department, Faculty of Science, Al-Baha University, Post Office 1034, Postal Code 65431, Kingdom of Saudi Arabia |
| Abstract: | Titanium oxide inorganic ion exchange material was synthesized by hydrolysis with water and ammonia solution. Structural feature of the synthesized titanium oxide was analyzed using X-ray diffraction, X-ray fluorescence and infrared spectrometer technique. Tentative formula of titanium oxide was determined and written as TiO2·0.58H2O. Titanium oxide films were deposited on glass substrates by means of an electron beam evaporation technique at room temperature from bulk sample. The films were annealed at 250, 350, 450, and 550 °C temperatures. Transmittance, reflectance, optical energy gap, refractive index and extinction coefficient were investigated. The transmittance values of 85% in the visible region and 88% in the near infrared region have been obtained for titanium oxide film annealed at 550 °C. Kubelka-Munk function was used to evaluate the absorption coefficient which was used to determine the optical band gap. It was found that the optical band gap increases with increasing annealing temperature whereas the refractive index and extinction coefficient decreases. |
| Keywords: | B Sol-gel technique A Thin films D Optical properties |
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