Influences of water content on synthesis of (Pb0.5,Ba0.5)TiO3 materials using acetylacetone as chelating agent in a sol-gel process

Wein Duo Yang*, Sossina M. Haile

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Ferroelectric (Pb0.5,Ba0.5)TiO3 (PBT) nanometric sized powders and thin films can be synthesized by a sol-gel process incorporating acetylacetone as a chelating agent to form ligands with titanium isopropoxide. The water contents were varied to investigate the resulting effects on the properties of the PBT powders. It was found that at a lower content of water, a slower rate of hydrolyzation and polycondensation occurred, therefore, a less cross-linking gel that pyrolyzed easily was observed. This less cross-linking gel could be converted to perovskite PBT at temperatures as low as 450 °C. A high purity of perovskite powder was obtained at 500 °C, with a nano-meteric size of about 30-50 nm the specific surface area of 21.91 m2/g. PBT thin films with polycrystalline or highly preferred orientation were prepared using the as-prepared optimal sol spin coating on (1 0 0) Si or (1 0 0) MgO substrate, respectively. The films were smooth, good quality and crack-free.

Original languageEnglish (US)
Pages (from-to)3203-3210
Number of pages8
JournalJournal of the European Ceramic Society
Volume26
Issue number15
DOIs
StatePublished - 2006

Keywords

  • (Pb,Ba)TiO
  • Films
  • Sol-gel methods

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Influences of water content on synthesis of (Pb<sub>0.5</sub>,Ba<sub>0.5</sub>)TiO<sub>3</sub> materials using acetylacetone as chelating agent in a sol-gel process'. Together they form a unique fingerprint.

Cite this