Preparation and properties of ferroelectric BaTiO3 thin films produced by the polymeric precursor method

Nenhuma Miniatura disponível
Lee, E. J. H.
Pontes, F. M.
Leite, E. R.
Longo, Elson [UNESP]
Varela, José Arana [UNESP]
Araujo, E. B.
Eiras, J. A.
Título da Revista
ISSN da Revista
Título de Volume
Ferroelectric barium titanate thin films were produced by the polymeric precursor method. In this technique, the desired metal cations are chelated in a solution using a hydroxycarboxylic acid as the chelating agent. Barium carbonate and titanium IV isopropoxide were used as precursors for the citrate solution. Ethylene glycol and citric acid were used as polymerization/complexation agents for the process. The crystalline structure of the film annealed at 700 °C had a single perovskite phase with a tetragonal structure. The BaTiO3 film showed good P-E hysteresis loops and C-V characteristics due to the switched ferroelectric domains.
Atomic force microscopy, Barium titanate, Complexation, Ferroelectricity, Glycols, Hysteresis, Perovskite, Polymerization, Scanning electron microscopy, Thin films, X ray diffraction, Metal-ferroelectric-metal capacitors, Polymeric precursor method, Ferroelectric materials
Como citar
Journal of Materials Science Letters, v. 19, n. 16, p. 1457-1459, 2000.