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International Journal of Photoenergy
Volume 2010, Article ID 105878, 7 pages
http://dx.doi.org/10.1155/2010/105878
Research Article

Barium Staminate as Semiconductor Working Electrodes for Dye-Sensitized Solar Cells

Key Laboratory of Photovoltaic Materials of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475001, China

Received 2 January 2010; Revised 4 April 2010; Accepted 20 April 2010

Academic Editor: David Lee Phillips

Copyright © 2010 Fu-an Guo 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

Dye-sensitized solar cells (DSSCs) are fabricated with perovskite-type as the photoelectrode materials. Different preparation methods including coprecipitation, hydrothermal, and solid state reaction are employed to synthesize particles to optimize the photoelectric activities of electrode materials. The photoelectric properties of particles and the performances of DSSCs are investigated by surface photovoltage spectroscopy and current-voltage measurements. The light-to-electricity conversion of 1.1% is preliminarily reached on the DSSC made of the coprecipitation-derived particles. Large current density of hole injection into the HOMO level of N719 dye from the valence band of and reduced photogenerated charge recombination in could be responsible for the observed solar cell performance of the DSSC fabricated from the coprecipitation-derived particles.