Water incorporation in BaTiO 3 films grown under hydrothermal conditions

Lisoni J.G.; Piera F.J.; Sánchez, M; Soto C.F.; Fuenzalida, V.M.

Abstract

The influence of temperature on water incorporation into barium titanate films grown hydrothermally was investigated. The films were prepared using titanium foils that were immersed in 0.5 M barium hydroxide aqueous solutions for 4 h. Working temperatures were 100, 150 and 215°C. The samples were characterized by X-ray diffraction, Auger electron spectroscopy, forward recoil spectrometry and thermal desorption spectrometry. The latter showed that water was incorporated mainly in the molecular form and that this was favored at lower temperatures, leading to a slightly larger unit cell as has been observed in hydrothermal powders. Films grown at lower temperatures exhibited stronger XRD reflections. © 1998 Elsevier Science B.V. All rights reserved.

Más información

Título de la Revista: APPLIED SURFACE SCIENCE
Volumen: 134
Número: 1-4
Editorial: Elsevier
Fecha de publicación: 1998
Página de inicio: 225
Página final: 228
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-0032165754&partnerID=q2rCbXpz