Skip to main content

Tantalum Penta-Glycolate Sol as a Precursor of Strontium Bismuth Tantalate Ferroelectric Thin Films

Buy Article:

$43.00 plus tax (Refund Policy)

A sol–gel synthesis method based on the diol route is reported here for the fabrication of strontium bismuth tantalate (SBT, SrBi2Ta2O9) ferroelectric thin films. A tantalum penta-glycolate (TPG)-based sol is synthesized, which is air stable and has low toxicity. The structure of the TPG compound is studied by nuclear magnetic resonance (NMR) spectrometry, and the results show that TPG contains a tantalum cation bonded to five diol groups. The molecular association of the TPG derivatives in the sol, through the terminal hydroxyl groups of the diol ligands, is responsible for its transformation into a gel. Other metal compounds can be easily added to the TPG-based sols for the preparation of air-stable and precipitate-free multicomponent solutions. These solutions are precursors of complex oxide materials. In this paper, SBT thin films have been prepared by this sol–gel method. These films develop a layered perovskite structure after crystallization. The films have a remanent polarization of Pr∼10 C/cm2, a coercive field of Ec∼65 kV/cm, and are fatigue free up to ∼1010 cycles.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Document Type: Research Article

Affiliations: Inst. Ciencia de Materiales de Madrid (CSIC), Cantoblanco 28049, Madrid, Spain

Publication date: 2005-10-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more