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Journal of Renewable Energy
Volume 2013 (2013), Article ID 545212, 8 pages
http://dx.doi.org/10.1155/2013/545212
Research Article

Low-Temperature Processing of Titanium Oxide Nanoparticles Photoanodes for Dye-Sensitized Solar Cells

1Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
2Physics Department, Al Azhar University-Gaza, P.O. Box 1277, Gaza, Palestine

Received 5 September 2012; Revised 20 October 2012; Accepted 26 October 2012

Academic Editor: Onder Ozgener

Copyright © 2013 Naji Al Dahoudi et al. 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

Using the low-temperature processing of different organofunctional silanes like TEOS, GPTS, and MPTS to incorporate within TiO2 network, dye-sensitized solar cells (DSCs) processed at low temperatures were obtained. The UV-cured MPTS-modified layer exhibited better performance over the TEOS and GPTS, where better mechanical stable layer is achieved in addition to better interconnection between the TiO2 nanoparticles. The J-V characteristics of the DSC composed of silane-based layer showed that the improved cell performance was due to the high photocurrent density accompanied with more dye adsorption and higher charge injection from TiO2 to FTO substrate resulting from the formation of an ohmic contact with the substrate. The highest conversion efficiency attained for MPTS-TiO2 layer cured with UV and followed by heating at 300C was %, which is 2.8 times better than the GPTS-based layer.