Optical studies on sol-gel derived titanium dioxide films

A. K. Ray, S. M. Tracey, B. McQuillin, Simon Hodgson

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    Abstract

    Optical absorption A(λ) and transmission T(λ) spectra for normal incidence have been obtained within the wavelength (λ) range 300-900 nm for titanium dioxide (TiO2) films in anatase form prepared by the sol-gel method. The dispersion relation for refractive indices is in agreement with the oscillator model. The refractive index is found to be independent of thickness. Above the absorption tail, optical absorption is believed to be due to nondirect electronic processes involving no transitions between localized states in a single layer thick TiO2 film. For a multilayered film, transitions between localized states are probable as equal as those between all other states.

    Original languageEnglish
    Pages (from-to)301-305
    JournalIEE Proceedings: Science, Measurement and Technology
    Volume147
    Issue number6
    DOIs
    Publication statusPublished - 1 Nov 2000

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    Titanium dioxide
    Light absorption
    Sol-gels
    Refractive index
    Thick films
    Sol-gel process
    Wavelength

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    Cite this

    Ray, A. K. ; Tracey, S. M. ; McQuillin, B. ; Hodgson, Simon. / Optical studies on sol-gel derived titanium dioxide films. In: IEE Proceedings: Science, Measurement and Technology. 2000 ; Vol. 147, No. 6. pp. 301-305.
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    Optical studies on sol-gel derived titanium dioxide films. / Ray, A. K.; Tracey, S. M.; McQuillin, B.; Hodgson, Simon.

    In: IEE Proceedings: Science, Measurement and Technology, Vol. 147, No. 6, 01.11.2000, p. 301-305.

    Research output: Contribution to journalArticleResearchpeer-review

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    N1 - Author can archive publisher's version/PDF.

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