Excellent low-E energy storage and fluorescence temperature sensing features in Bi0.5Na0.5TiO3-based transparent ceramics

Dielectric ceramics have attracted wide interest in the field of energy storage. However, high energy density depends on large electric field, seriously threatening the safety of workers and distribution equipment. This work reports excellent energy storage performance of Bi0.5Na0.5TiO3-based transparent ceramics at low electric field. A schematic diagram shows the designed TPC and the corresponding ceramics using the collaborative optimization strategy, including a series of measures (enhancing the energy-storage performance, broadening the stable dielectric platform and reducing both grain and domain sizes). And a practical application scenario for rescue signal transmission when disasters occur is conceived. [Display omitted] •Bi0.5Na0.5TiO3-based transparent energy-storage ceramics were prepared.•High Wrec of 3.46 J cm−3 was obtained at a low electric field of 197 kVcm−1.•High stability (Δη/η