Preparation and Evaluation of TiO₂ Nanoparticle Thin Films by Electrophoresis Deposition

Abstract:

The transparency and uniformity of thin films of titanium oxide (TiO2) are important factors in determining the characteristics of photocatalysts and dye-sensitized solar cells. Synthesized TiO2 nanoparticles were deposited by constant-current electrophoresis deposition in ion-free water and ethanol. The number of cracks was reduced when ethanol was used instead of water. TiO2 nanoparticle thin films produced using a short deposition time had no apparent cracks and a high optical transparency. Moreover, thick TiO2 nanoparticle thin films, which have high optical trans-parency and no apparent cracks, could be deposited by repeating short-time deposition in ethanol.

• Periodical: Key Engineering Materials (Volume 445)
• Pages: 135-139
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.445.135
• Online since: July 2010
• Authors: Kazuatsu Ito, Yuuki Sato, Motonari Adachi, Yasushige Mori, Shinzo Yoshikado
• Keywords: Constant-Current Method, Electrophoresis Deposition, Thin Film, TiO₂ Nanoparticle, Transparency, ζ- Potential

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