%0 Journal Article
%A Necib, Jallouli
%A López Sánchez, Jesús
%A Rubio Marcos, Fernando
%A Serrano, Aída
%A Navarro Palma, Elena
%A Peña Moreno, Álvaro
%A Taoufik, Mnasri
%A Smari, Mourad
%A Rojas Hernández, Rocío Estefanía
%A Carmona Tejero, Noemí
%A Marín Palacios, María Pilar
%T A feasible pathway to stabilize monoclinic and tetragonal phase coexistence in barium titanate-based ceramics
%D 2022
%@ 2050-7526
%U https://hdl.handle.net/20.500.14352/72854
%X Multiphase coexistence has attracted significant interest in recent years because its control has entailed a significant breakthrough for the piezoelectric activity enhancement of lead-free piezoelectric oxides. However, the comprehension of phase coexistence still has many controversies including an adequate synthesis process and/or the role played by crystalline phases in functional properties. In this study, functional barium titanate [BaTiO_(3), (BTO)]-based materials with tunable functional properties were obtained by compositional modification via Bismuth (Bi) doping. Towards this aim, we systematically synthesized BTO-based materials by a sol-gel method, focusing on the control of Bi substitution in the BaTiO_(3) structure. In particular, we found that the substitution of Bi^(+3) leads to the stabilization of a monoclinic-tetragonal (M-T) phase boundary close to room temperature, which facilities the polarization process of the system. As a surprising result, we believe that the simple and cost-effective strategy and design principles described in this work open up the possibility of obtaining BTO-based lead-free ceramics with enhanced properties induced by the stabilization of the phase coexistence, expanding their application range.
%~