Structural Elucidation of Eu(III)-Doped BaTiO3 Ceramics
Visualitza/
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/158176
comunitat-uji-handle2:10234/71324
comunitat-uji-handle3:10234/98504
comunitat-uji-handle4:
TFG-TFMAquest recurs és restringit
Metadades
Títol
Structural Elucidation of Eu(III)-Doped BaTiO3 CeramicsAutoria
Tutor/Supervisor; Universitat.Departament
Beltrán Mir, Héctor; Universitat Jaume I. Departament de Química Inorgànica i OrgànicaData de publicació
2018-07Editor
Universitat Jaume IResum
BaTiO3 ceramics doped with Eu(III) were prepared via sol-gel synthesis with a Eu(III)
content between 0 – 10 mol%. The nominal compositions of the prepared compounds were:
(Ba1-3xEu2x)TiO3 and Ba(Ti1-xEux)O3-x/2, ... [+]
BaTiO3 ceramics doped with Eu(III) were prepared via sol-gel synthesis with a Eu(III)
content between 0 – 10 mol%. The nominal compositions of the prepared compounds were:
(Ba1-3xEu2x)TiO3 and Ba(Ti1-xEux)O3-x/2, where two possible mechanisms of substitution are
addressed. The environment of Eu(III) was studied from X-ray diffraction (XRD) data,
scanning electronic microscopy (SEM), energy dispersive analysis of X-rays (EDX), and
connecting both the optical properties (excitation, emission spectra, and decay curves) and
the electrical properties (permittivity and impedance spectroscopy measurements).
Regardless of the nominal compositions, the solubility limit of Eu(III) in the synthesised
materials was found to be 2 – 3 mol%. Results were consistent with the occupation of Ba
site until 2 mol% of Eu is reached in both mechanisms. It was also found for a 3 mol% in
the Ba(Ti1-xEux)O3-x/2 mechanism that Eu occupies both Ba and Ti sites. Therefore, the
combination of optical and electrical properties has led to a more accurately elucidation of
Eu(III) in BaTiO3 ceramics. [-]
Paraules clau / Matèries
Descripció
Treball Final de Grau en Química. Codi: QU0943. Curs acadèmic: 2017/2018
Tipus de document
info:eu-repo/semantics/bachelorThesisDrets d'accés
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
Apareix a les col.leccions
- Grau en Química [265]