Table of Contents Author Guidelines Submit a Manuscript
International Journal of Photoenergy
Volume 2011, Article ID 980560, 9 pages
http://dx.doi.org/10.1155/2011/980560
Research Article

Characterization of Synthetic Ni(II)-Xylenol Complex as a Photosensitizer for Wide-Band Gap ZnO Semiconductor Electrodes

Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi 221005, India

Received 22 November 2010; Accepted 2 February 2011

Academic Editor: Vincenzo Augugliaro

Copyright © 2011 Suman Kushwaha and Lal Bahadur. 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.

Abstract

A synthetic NL(H2O)2 complex (L = xylenol orange, 3,-bis [N,N-di(carboxymethyl)-aminomethyl]-o-cresol sulphonapthalein (H2O)2), which is a water-soluble dye, has been studied for its photosensitizing properties at -ZnO semiconductor electrodes prepared by sol-gel techniques. The absorption spectrum of aqueous solution of this complex exhibits a strong peak at 563 nm and a shoulder at 526 nm wavelength of light. The sandwich-type dye-sensitized solar cell using ZnO semiconducting thin film with test dye anchored onto it showed the cell output as follows:  V,  mA cm−2, and under illumination with full spectrum of light (intensity 520 mW cm−2), while on illumination with visible light ( nm, intensity 480 mW cm−2),  V,  mA cm−2, and were achieved. Maximum incident photon-to-current conversion efficiency for the present system was found to be 8.7% at wavelength ( nm).