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Proceedings Paper

Optical studies of TiO2 films deposited on different substrates
Author(s): C. Cotîrlan; V. Vasile; F. Ungureanu
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Paper Abstract

Titanium dioxide thin films prepared by sol-gel method and deposited on p-Si (111), n-GaAs (100) and glass have been investigated by Raman spectrometry and photoluminescence analysis. The films were annealed in the temperature range (500-800)°C in air. Raman scattering studies reveal the presence of Raman active modes in the calcinated TiO2 films related to anatase phase of titania. The photoluminescence spectrum presents prominent red shifted peaks (e.g. at 400 nm for TiO2/glass), where the maximum is related to the presence in titania films of defect levels corresponding to oxygen vacancies.

Paper Details

Date Published: 1 August 2007
PDF: 5 pages
Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 67851X (1 August 2007); doi: 10.1117/12.756805
Show Author Affiliations
C. Cotîrlan, National Institute of Materials Physics (Romania)
V. Vasile, National Institute of Materials Physics (Romania)
F. Ungureanu, National Institute of Materials Physics (Romania)


Published in SPIE Proceedings Vol. 6785:
ROMOPTO 2006: Eighth Conference on Optics

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