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International Journal of Photoenergy
Volume 2012, Article ID 613969, 4 pages
http://dx.doi.org/10.1155/2012/613969
Research Article

Photoanode of Dye-Sensitized Solar Cells Based on a ZnO/TiO2 Composite Film

School of Science, Beijing Jiaotong University, Beijing 100044, China

Received 6 April 2012; Accepted 12 July 2012

Academic Editor: G. N. Tiwari

Copyright © 2012 Lu-Ting Yan 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

A photoanode of dye-sensitized solar cells based on a ZnO/TiO2 composite film was fabricated on a transparent conductive glass substrate using different techniques including electrophoretic deposition, screen printing, and colloidal spray coating. The ZnOs used in the composite film were ZnO tetrapods prepared via thermal evaporation and ZnO nanorods obtained via hydrothermal growth. The structural and morphological characterizations of the thin composite films were carried out using scanning electron microscope (SEM). The best power conversion was 1.87%, which corresponds to the laminated TiO2/ZnO/TiO2 structure prepared via screen printing.