Preparation and Characterization of Dye-Sensitized Solar Cells Containing TiO₂ Nanotube Clusters/Nanoparticle Hybrid Films

Abstract:

TiO2 nanotube array films were synthesized by the anodic oxidation of a Ti plate in an NH4F electrolyte. The thickness of the films was dependent upon the oxidation time. Nanotube clusters were produced when the films were subjected to sonication. Pastes were subsequently prepared by mixing the nanotube clusters with TiO2 nanoparticles. The pastes were used to fabricate photoelectrodes of dye-sensitized solar cells. The generation efficiencies of cells with TiO₂ nanotube clusters were lower than those of cells without these clusters. TiO₂ nanotube clusters were very large, and therefore, they might have intercepted the ionic transport.

• Periodical: Key Engineering Materials (Volume 485)
• Pages: 153-156
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.485.153
• Online since: July 2011
• Authors: Kazuho Hayashi, Takahiro Nakamura, Takashi Ogihara
• Keywords: Anodic Oxidation, Dye Sensitized Solar Cell (DSSC), Ionic Transport, TiO₂ Nanotube

References

[1] M. Gratzel: J. Photochem. Photobiol. C: Photochemistry Reviews, Vol. 4 (2003), p.145.

[2] H. Park, D. J. Yang, J. S. Yoo, K. S. Mum, W. R. Kim, H. G. Kim, and W. Y. Choi: J. Ceram. Soc. Jpn., Vol. 117 (2009), p.596.