doi: 10.7763/IJAPM.2012.V2.155
Optical Characteristics of TiO<sub>2</sub> Thin Films Sensitized with the Natural Dye of Clitoria Ternatea
- 1 the Department of Physics, Avinashilingam Institute for Home Science and Higer Eductaion for Women, Coimbatore-43, Tamilnadu, India.
- 2 the Department of Physics, Varuvan Vadivelan Institute of Technology, Krishnagiri, Tamilnadu, India
Abstract
Thin films of TiO<sub>2</sub> are deposited by Successive Ionic Layer Adsorption and Reaction (SILAR) technique. Films are characterized by X-ray diffraction, Scanning Electron Microscopy and UV-Vis. spectrometry. TiO<sub>2</sub> films are sensitized by the natural dye extracted from Clitoris Ternatea. Effect of dye sensitization on the optical properties of TiO<sub>2</sub> thin films is analyzed. A red shift in the optical band gap of the films is observed upon dye sensitization. The direct and indirect band gap of the sensitized films is in the range of 3.2-3.8eV and 2.0-2.9 eV respectively.
Keywords
- Band gap
- clitoria ternatea
- dye sensitization
- TiO<sub>2</sub>
How to Cite
Rachel Oommen, P. Usha Rajalakshmi, and S. Sudha, "Optical Characteristics of TiO<sub>2</sub> Thin Films Sensitized with the Natural Dye of Clitoria Ternatea," International Journal of Applied Physics and Mathematics, vol. 2, no. 6, pp. 439-441, 2012. https://doi.org/ 10.7763/IJAPM.2012.V2.155
Copyright & License
Copyright © 2012 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).