Realizing ultrahigh breakdown strength and ultrafast discharge speed in novel barium titanate-based ceramics through multicomponent compounding strategy

Dynamics of the phase transition in Bi0.5Na0.5TiO3 based on in situ Raman spectroscopy

“…5 The multiple and synergistic interactions induce the complex phase transition process in BNT. 6,7 As reported, BNT possesses a ferroelectric rhombohedral phase below ∼200 °C (depolarization temperature T d ), a paraelectric tetragonal phase above ∼320 °C (Curie temperature T C ) and a cubic phase above ∼520 °C. 8,9 However, in the temperature range of 200–320 °C, a pinched hysteresis loop is observed, accompanied by a debatable explanation until now.…”

Effective regulation of breakdown strength through the synergistic effect of defect chemistry and energy band engineering in Ba0.85Ca0.15Zr0.1Ti0.9O3-based lead-free ceramics

“…34,49,50 The E g values can be estimated based on UV-vis absorption spectra (Fig. 7(a)) and the Tauc eqn (6): 31,34…”

Leakage-Limitation Engineering Derived from an Interfacial Charge Barrier for Dielectric Energy Storage in Relaxation Ferroelectric Films

“…Some effective methods are considered to reduce leakage and enhance energy storage performances, including modifying the lattice structure, electric domain structure, and conductivity type by chemical doping and solid solution. − Although the modification may reduce leakage, it is sometimes accompanied with a decrease in polarization strength, which is not beneficial to improving the energy storage density. Therefore, limiting leakage without expanse of polarization is a challenging and meaningful topic.…”