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 language | English |
|---|---|
| Pages (from-to) | 2622-2624 |
| Number of pages | 3 |
| Journal | Materials Letters |
| Volume | 63 |
| Issue number | 30 |
| DOIs | |
| State | Published - 31 Dec 2009 |
| Externally published | Yes |
Keywords
- BaTiO
- Ferroelectricity
- Sol-gel
- Thin film