Preparation of BaTiO3 thin films by electrophoretic deposition from nanoparticle suspension

Abstract

Barium titanate gel was prepared from highly concentrated alkoxides solution. A mixture of 2-methoxyethanol and Acetylacetone was added to the gel. The gel was dispersed in the suspension medium by ultrasonication. We obtained transparent barium titanate nanoparticle suspension by this method. Barium Titanate thin films were fabricated by electrophoretic deposition on cathode electrode. From TEM observation, the particle size was estimated around 10∼15nm. The particles were conformed to be cubic barium titanate by diffraction pattern.