Preparation of Transparent Thick Films by Electrophoretic Sol-Gel Deposition Using Phenyltriethoxysilane-Derived Particles |
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| Authors: | Kiyofumi Katagiri Koichi Hasegawa Atsunori Matsuda Masahiro Tatsumisago Tsutomu Minami |
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| Affiliation: | Department of Applied Materials Science, College of Engineering, Osaka Prefecture University, Sakai, Osaka 599–8531, Japan |
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| Abstract: | Thick films were prepared on glass substrates coated with indium tin oxide (ITO) via electrophoretic deposition using sols that contained phenylsilsesquioxane (PhSiO3/2) particles derived from phenyltriethoxysilane. The transparency of the thick PhSiO3/2 films was significantly improved via heat treatment at temperatures >200°C. Scanning electron microscopy observation showed that the thick films changed in morphology, from aggregates of particles with several open spaces among the particles to a monolith with no open spaces after the heat treatment. Transparent films ~3 µm thick were obtained when the films were heat-treated at a temperature of 400°C for 2 h. |
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