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International Journal of Photoenergy
Volume 2013, Article ID 906820, 6 pages
Research Article

Dye-Sensitized Solar Cell Based on Polyaniline/Multiwalled Carbon Nanotubes Counter Electrode

1Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, P.O. Box 832, Shatby, Alexandria 21526, Egypt
2Physics Department, Faculty of Science, Alexandria University, Moharram Bek, Alexandria 21511, Egypt
3Applied Research Center, Jefferson National Lab and Department of Molecular Biology and Chemistry, Christopher Newport University, Newport News, VA 23606, USA

Received 16 May 2013; Revised 30 August 2013; Accepted 30 August 2013

Academic Editor: Fahrettin Yakuphanoglu

Copyright © 2013 Shaker Ebrahim 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.


This work presented the successful fabrication of dye-sensitized solar cell using polyaniline base (EB), multiwalled carbon nanotubes (MWCNTs), organic dye (rhodamine B or riboflavin), zinc oxide (ZnO), and indium tin oxide (ITO). The electrical properties of the resultant devices were investigated by measuring the current density voltage ( - ), capacitance voltage ( - ), and impedance measurements under both dark and illuminated conditions. The photovoltaic cell characteristics, that is, open circuit voltage ( ), short circuit current density ( ), and energy conversion efficiency ( ), were evaluated under illumination and were found to be 0.48 mA/cm2, 400 mV, and 0.224%, respectively, for ITO/EB-MWCNTs/ZnO-rhodamine B/ITO heterostructure. Using impedance spectra, it was found that the series resistances of this type of solar cell are 62 and 60 Ω under darkness and illumination, respectively.