Two-step doping approach releasing the piezoelectric response of BiFeO3 bulk ceramics co-doped with titanium and samarium

  1. Carlos Gumiel
  2. Mara S. Bernardo
  3. Pablo G. Villanueva
  4. David G. Calatayud
  5. Marco Peiteado
  6. Teresa Jardiel
Journal:
Boletín de la Sociedad Española de Cerámica y Vidrio

ISSN: 0366-3175

Year of publication: 2020

Volume: 59

Issue: 2

Pages: 81-87

Type: Article

DOI: 10.1016/J.BSECV.2019.07.002 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Boletín de la Sociedad Española de Cerámica y Vidrio

Abstract

The conventional solid state processing of bulk Ti,Sm co-doped BiFeO3 ceramics typically produces a complex micro-nanostructure which exhibits an effective decrease of the leakage conductivity. This same nanostructured configuration however confines the mobility of the ferroelectric domains and in this way the potential piezoelectric response of the formulated composition remains restrained. Hereby, a two-step doping strategy based on a simple surface modification approach is proposed which eventually allows for suitably engineering the microstructural development of the material, leading to a coarsened configuration where the conductivity is kept in low levels while the piezoelectric response is satisfactorily released for practical purposes.

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