Highly preferred oriented lead barium titanate thin films 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 journalArticle

8 Scopus citations

Abstract

Ferroelectric (Pb1-x, Bax)TiO3 (PBxT) materials can be synthesized by a sol-gel process incorporating acetylacetone as a chelating agent to form ligand with titanium isopropoxide. It was found that a less cross-linking gel obtained at 120 °C and could be converted to nanometric-sized perovskite phase powder. A high purity of (Pb0.5, Ba0.5)TiO3 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. Furthermore, highly oriented PBxT thin films were obtained by utilizing the as-prepared sol spin-coating on (100) MgO substrate. The oriented films were synthesized from all compositions between x = 0.2 and x = 0.8, at a crystallization temperature of 600 °C. In particular, for the Ba content in the range of x = 0.5-0.6, highly preferred (001)/(100) planes were observed.

Original languageEnglish (US)
Pages (from-to)143-148
Number of pages6
JournalReviews on Advanced Materials Science
Volume10
Issue number2
StatePublished - Sep 1 2005

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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