ISSN

0974-4150 (Online)
0974-4169 (Print)


Author(s): S. Rugmini Radhakrishnan, S. Sharmila Sri

Email(s): rugminiradhakrishnan@yahoo.com

DOI: Not Available

Address: S. Rugmini Radhakrishnan* and S. Sharmila Sri
Department of Physics, Avinashilingam Deemed University for Women, Coimbatore 641043, Tamil Nadu India
*Corresponding Author

Published In:   Volume - 4,      Issue - 4,     Year - 2011


ABSTRACT:
In this work, the effect of three natural photosensitizers (dyes of beetroot, grapes and pomegranate) over TiO2 thin film are investigated. Natural dyes were extracted from beetroot, grapes and pomegranate and mixed with ethanol and coated over TiO2 thin films prepared by Spray pyrolysis method from titanium diisopropoxide precursors at 450ºC. and kept in each dye extract for 15 hours. The optical absorbance and transmittance of dye sensitized TiO2 thin films determined by UV-visible spectroscopic method, indicated the presence of increased light transmission in the visible spectrum region. The energy band gap (Eg) for TiO2 thin films sensitized with dyes of beetroot, grapes and pomegranate were found to be 3.18eV, 3.12 eV and 3.14 eV respectively. Dye-Sensitized Solar Cells constructed with natural pigments from fruits and vegetables will enhance light harvesting.


Cite this article:
S. Rugmini Radhakrishnan, S. Sharmila Sri. Natural Photosensitizers on TiO2 films for Dye Sensitized Solar Cells. Asian J. Research Chem. 4(4): April, 2011; Page 621-625.

Cite(Electronic):
S. Rugmini Radhakrishnan, S. Sharmila Sri. Natural Photosensitizers on TiO2 films for Dye Sensitized Solar Cells. Asian J. Research Chem. 4(4): April, 2011; Page 621-625.   Available on: https://www.ajrconline.org/AbstractView.aspx?PID=2011-4-4-24


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