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Journal of Nanomaterials
Volume 2015, Article ID 680201, 9 pages
Research Article

Spacer Thickness-Dependent Electron Transport Performance of Titanium Dioxide Thick Film for Dye-Sensitized Solar Cells

1Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
2Physics Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
3Analytical & Electrochemistry Research Unit, Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt

Received 23 April 2015; Revised 15 July 2015; Accepted 29 July 2015

Academic Editor: Chuanbao Cao

Copyright © 2015 Reda E. El-Shater 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.


A titanium dioxide (P25) film was deposited by cast coating as conductive photoelectrode and subsequently immersed in dye solution (N719) to fabricate the photoanode of dye-sensitized solar cells (DSSCs). A plastic spacer was used as a separation and sealant layer between the photoanode and the counter electrode. The effect of the thickness of this spacer on the transfer of electrons in the liquid electrolyte of the DSSCs was studied by means of both IV curves and electrochemical impedance. Using a spacer thickness range of 20 μm to 50 μm, efficiency ranges from 3.73% to 7.22%. The highest efficiency of 7.22% was obtained with an optimal spacer thickness of 40 μm.