Fabrication of La³⁺ doped Ba_1−xLa_xTiO₃ ceramics with improved dielectric and ferroelectric properties using a composite-hydroxide-mediated method

Abstract

The improved dielectric and energy storage properties of La3+-doped BaTiO3 ceramics make them attractive for use in energy storage applications.

Lead-free (Ba,Sr)TiO 3-based ceramics with superior tunable properties by the semi-solution method

“…On the other hand, introducing the donor dopant La 3+ to replace Ba 2+ would facilitate the formation of cation vacancies owing to charge compensation, which could improve the domain-wall mobility and thereby enhance the dielectric constant and dielectric tunability [26,27]. However, the inevitable deterioration of dielectric tunability could be found in acceptor-doped ceramics, while semiconducting behavior and increased dielectric loss would occur in donordoped samples [28,29]. In other words, either approach could realize improved dielectric tunability and lowered dielectric loss simultaneously, resulting in limited room for obvious enhancement of FOM.…”