Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Effects of lanthanide amphoteric incorporation on structural, electrical, and photoluminescence properties of BaTi0.925(Yb0.5Nb0.5)(0.075)O-3 ceramic

Abstract : The influence of the lanthanide incorporation in lead-free ferroelectric BaTi0.925(Yb0.5Nb0.5)(0.075)O-3 (BTYN) perovskite on its structural, dielectric, ferroelectric behavior, piezoelectric and photoluminescence properties was investigated. X-ray diffraction study permitted the identification of an isostructural phase with P4mm-tetragonal symmetry. Praseodymium was found to occupy only Ba-sites instead of the distribution over both sites as in the case of Nd and Eu elements. The improvement of dielectric and ferroelectric properties obtained from Nd- and Eu-phase is discussed in terms of amphoteric behavior effect of these elements. Incorporation of Ln(3+) was found to improve piezoelectric properties from 3 pC/N for BTYN to 18, 40 and 26 pC/N for BTYN:Eu, BTYN:Nd and BTYN:Pr respectively. The photoluminescence (PL) properties of Pr-phase gives rise to the expected electronic transitions associate to Pr3+ ions. In contrast, PL carried out on Eu- and Nd-phases showed dominate strong red emission centered at 690 nm attributed to defect structure and non-stoichiometry. The simultaneous existence of ferroelectric piezoelectric and luminescence properties in the titled system could be promising for electro-optical applications. (C) 2017 Elsevier B.V. All rights reserved.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-u-picardie.archives-ouvertes.fr/hal-03627746
Contributeur : Louise DESSAIVRE Connectez-vous pour contacter le contributeur
Soumis le : vendredi 1 avril 2022 - 14:37:35
Dernière modification le : lundi 12 septembre 2022 - 09:36:48

Identifiants

Collections

Citation

C. Chalfouh, A. Lahmar, S. Zghal, R. Hannachi, N. Abdelmoula, et al.. Effects of lanthanide amphoteric incorporation on structural, electrical, and photoluminescence properties of BaTi0.925(Yb0.5Nb0.5)(0.075)O-3 ceramic. Journal of Alloys and Compounds, Elsevier, 2017, 711, pp.205-214. ⟨10.1016/j.jallcom.2017.03.351⟩. ⟨hal-03627746⟩

Partager

Métriques

Consultations de la notice

3