%0 Journal Article %T Structural determination, dielectric and photoluminescence properties of Ba0.975Ln(0.017)(Ti(0.95-x)ZrxSn(0.05))O-3 (Ln = Eu, Ho; x=0.05, 0.20) %+ Université des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger] (USTHB) %+ Laboratoire de Physique de la Matière Condensée - UR UPJV 2081 (LPMC) %+ Université Mohammed VI Polytechnique [Ben Guerir] (UM6P) %+ Centre de Recherche Nucléaire de Birine (CRNB) %+ Laboratoire de Physico-Chimie des Matériaux et Catalyse [Université Abderrahmane Mira - Bejaia] (LPCMC) %A Smail, S. %A Benyoussef, Manal %A Taibi, K. %A Manoun, B. %A Bensemma, N. %A Souici, A. %A El Marssi, M. %A Lahmar, A. %< avec comité de lecture %@ 0921-4526 %J Physica B: Condensed Matter %I Elsevier %V 623 %8 2021 %D 2021 %R 10.1016/j.physb.2021.413365 %Z Physics [physics]/Condensed Matter [cond-mat]Journal articles %X Lead-free compounds with formula Ba0.975Ln0.017(Ti0.90Zr0.05Sn0.05)O3 (BLnZ5TS) and Ba0.975Ln0.017(Ti0.75Zr0.20Sn0.05)O3 (BLnZ20TS) [Ln = Eu, Ho] were synthesized using the solid-state reaction technique. Scanning electron micrographs of ceramics showed a decrease in the average grain size as the Ln3+ radii increases. The structural study allowed the identification of tetragonal and cubic symmetries at room temperature for BLnZ5TS and BLnZ20TS, respectively. Dielectric measurements were carried out as a function of temperature and frequency. The results revealed that BLnZ5TS exhibited normal ferroelectric behavior with diffuse phase transition, whereas BLnZ20TS displayed relaxor ferroelectric properties. The diffuse phase transition parameters were determined from the modified Curie-Weiss law, while the relaxor behavior in BLnZ20TS was highlighted by a good fit to the Vogel-Fulcher relationship. The photoluminescence of the prepared specimens was investigated and the results showed that these compositions bear interest for green and red emission. %G English %L hal-03608399 %U https://u-picardie.hal.science/hal-03608399 %~ CEA %~ UNIV-PICARDIE %~ UNIV-PARIS-SACLAY %~ U-PICARDIE %~ LPMC-UPJV