Preparation and some properties of pure and doped barium titanate thin films

Abstract

The article describes the research and development results of thin pure and doped barium titanate films with control orientation deposited on Pt substrates by electrophoretic deposition and sol-gel technique. Film temperature dependences of the electrical properties were investigated. Results showed that pure films had semiconductive behavior after heat-treatment in vacuum at 700-1000 o C. It was found that resistance to the degradation of dielectric properties can be improved by small doping (0.1-0.5 mole%) of La 2 O 3 .