Optical dispersion in spun nanocrystalline titania thin films

CAPAN, R., CHAURE, N. B., HASSAN, A. K. and RAY, A. K. (2004). Optical dispersion in spun nanocrystalline titania thin films. Semiconductor Science and Technology, 19 (2), 198-202.

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Link to published version:: https://doi.org/10.1088/0268-1242/19/2/012


Sol-gel derived titanium dioxide (TiO2) films are prepared on silicon substrates using the method of spin-coating with different speeds from 1000 to 6000 rpm. Spectroscopic ellipsometric measurements provide dispersion of the refractive index and extinction coefficient within the wavelength range of 300-1000 nm. The behaviour is in agreement with the single oscillator model. Optical absorption is believed to be due to allowed indirect transition over the optical gap of approximately 3.2 eV.

Item Type: Article
Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Electronic Materials and Sensors Research Group
Identification Number: https://doi.org/10.1088/0268-1242/19/2/012
Page Range: 198-202
Depositing User: Helen Garner
Date Deposited: 20 May 2010 14:58
Last Modified: 18 Mar 2021 21:15
URI: https://shura.shu.ac.uk/id/eprint/1973

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