Enhancing energy storage performances of Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-based dielectric ceramics <i>via</i> modulating polymorphic polar nanoregions
Xiaoyan Dong, Xiaojun Wu, Xiang Lv, Jiagang Wu
Abstract
A high recoverable energy density ( W rec ) of 7.0 J cm −3 and a large efficiency ( η ) of 81.5% were achieved in a Bi 0.5 Na 0.5 TiO 3 -based lead-free relaxor by modulating polymorphic polar nanoregions.
Topics & Concepts
DielectricMaterials sciencePolarCeramicEnergy (signal processing)Energy storageCondensed matter physicsOptoelectronicsPhysicsThermodynamicsComposite materialQuantum mechanicsPower (physics)AstronomyFerroelectric and Piezoelectric MaterialsDielectric properties of ceramicsMicrowave Dielectric Ceramics Synthesis