Enhanced ferroelectric properties of Fe-doped BaTiO3 thin film deposited on LaNiO3/Si substrate by sol-gel technique

Zhipeng Liu, Hongmei Deng, Pingxiong Yang*, Junhao Chu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The ferroelectric thin films of Fe-doped BaTiO3 and undoped BaTiO3 were prepared on LaNiO3 coating Si substrates by sol-gel technique. It was found that a small amount of Fe dopant could significantly enhance the ferroelectric properties of the BaTiO3 thin film. The remnant polarization of Fe-doped BaTiO3 thin film at room temperature reached to 14.9 μC/cm2. The loss tangent, compared to the undoped BaTiO3 film, was increased with frequency increasing and the dielectric constant was decreased. The possible mechanism of enhanced ferroelectric properties of Fe-doped BaTiO3 thin film was discussed. The results show the potential role of Fe dopant in improving the ferroelectric properties of BaTiO3 thin film.

Original languageEnglish
Pages (from-to)2622-2624
Number of pages3
JournalMaterials Letters
Volume63
Issue number30
DOIs
StatePublished - 31 Dec 2009
Externally publishedYes

Keywords

  • BaTiO
  • Ferroelectricity
  • Sol-gel
  • Thin film

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