Temperature dependent structural, dielectric, Raman, piezoresponse and photoluminescence investigations in sol-gel derived BCZT ceramics

0567780 - FZÚ 2023 RIV CH eng J - Journal Article
Coondoo, I. - Krylov, A. - Sharma, Dhananjay K. - Krylova, S. - Alikin, D. - Kumar, J.S. - Mirzorakhimov, A. - Melnikova, N. - Soares, M.J. - Kholkin, A. L.
Temperature dependent structural, dielectric, Raman, piezoresponse and photoluminescence investigations in sol-gel derived BCZT ceramics.
Materials Chemistry and Physics. Roč. 277, Feb (2022), č. článku 125526. ISSN 0254-0584. E-ISSN 1879-3312
Institutional support: RVO:68378271
Keywords : lead-free piezoelectrics * sol-gel * phase transitions * Raman spectroscopy * PFM * photoluminescence
OECD category: Ceramics
Impact factor: 4.6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.matchemphys.2021.125526

0.5Ba(Ti0.8Zr0.2)O-3-0.5(Ba0.7Ca0.3)TiO3 [50BZT-50BCT or BCZT] based compounds have been the focus of a lot of research, particularly motivated by their high piezoelectric effect. However, the literature lacks an elaborate investigation of the phase transition behavior in BCZT ceramics obtained by wet chemistry processing. Here, we present an in-depth study on the temperature dependence of x-ray diffraction (XRD), Raman scattering, dielectric properties, local piezoresponse and photoluminescence (PL) to investigate the sequence of phase transitions in the BCZT ceramic synthesized via a chemical route. Phase formation was determined by Rietveld analysis of XRD data, while compositional homogeneity and elemental quantification of the compound was validated using energy dispersive x-ray spectroscopy (EDX) and x-ray photoelectron spectroscopy (XPS) studies.
Permanent Link: https://hdl.handle.net/11104/0339027