An effective strategy for enhancing energy storage density in (Pb_1−1.5xGd_x)(Zr_0.87Sn_0.12Ti_0.01)O₃ antiferroelectric ceramics

Abstract

Antiferroelectric materials play an important role in dielectric energy storage because of their unique phase transition characteristics, high saturated polarization, and almost zero remanent polarization. However, their low energy storage...

Enhanced energy storage capabilities in PbHfO3-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions

“…42 Previous studies have suggested that this phenomenon facilitates the promotion of the anti-parallel arrangement of the distal AFE, thereby enhancing AFE stability. 27…”

“…6c compares the W rec of PCLHT2 ceramics with other reported AFE ceramics within a certain cycle range, indicating that PCLHT2 ceramics have a broader range of applications. 14,24,27 Fig. 6d shows the P – E loops measured for PCLHT ceramics across a frequency range of 1 Hz to 200 Hz under 360 kV cm −1 .…”

“…As mentioned earlier, substituting small ions at the A-site and large ions at the B-site serves to reduce the tolerance factor ( t ), which in turn enhances the phase-switching field. 27–30 However, delaying the phase switching fields often results in a weakening of maximum polarization ( P max ). 29 Additionally, the polarization value in the polarization–electric field ( P – E ) hysteresis loop experiences a sharp increase only when the electric field is sufficient to induce the AFE-FE phase transition.…”