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

Carlos Gumiel | Zendy; Mara S. Bernardo | Zendy; Pablo G. Villanueva | Zendy; David G. Calatayud | Zendy; M. Peiteado | Zendy; Teresa Jardiel | Zendy

Open Access

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

Author(s) -

Carlos Gumiel,

Mara S. Bernardo,

Pablo G. Villanueva,

David G. Calatayud,

M. Peiteado,

Teresa Jardiel

Publication year - 2019

Publication title -

boletín de la sociedad española de cerámica y vidrio

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.462

H-Index - 24

eISSN - 2173-0431

pISSN - 0366-3175

DOI - 10.1016/j.bsecv.2019.07.002

Subject(s) - materials science , doping , ceramic , piezoelectricity , samarium , conductivity , physics , composite material , chemistry , optoelectronics , nuclear physics

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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