Characterization of Hydroxyl Content of Hydrothermal Barium Titanate Films
Abstract
Epitaxial barium titanate films were prepared on single crystal strontium titanate substrates by hydrothermal deposition. The substrates were suspended in a solution of barium hydroxide containing titania, at 150 C. The incorporation of hydroxyl groups in the films was studied using XPS and FTIR. A significant concentration of OH was observed at the surface, but none was detected in the barium titanate lattice. The exchange reaction between the OH groups in the film and OD from D2O was studied following immersion of the coated substrates in D2O at 150 C. The films were subjected to several treatment cycles of varying duration. The kinetics of OH replacement increased with increasing cycle time, and also with increasing total reaction time.
Recommended Citation
S. K. Patil et al., "Characterization of Hydroxyl Content of Hydrothermal Barium Titanate Films," Ceramic Transactions, American Ceramic Society, Jan 2004.
Department(s)
Chemistry
Second Department
Materials Science and Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2004 American Ceramic Society, All rights reserved.
Publication Date
01 Jan 2004