Design of antiferroelectric polarization configuration for ultrahigh capacitive energy storage via increasing entropy.

ABSTRACT: Electric field induced antiferroelectric-ferroelectric phase transition is a double-edged sword for energy storage properties, which not only offers a congenital superiority with substantial energy storage density but also poses significant challenges such as large polarization hysteresis and poor efficiency, deteriorating the operation and service life of capacitors. Here, entropy increase effect is utilized to simultaneously break the long-range antiferroelectric order and locally adjust the fourfold commensurate modulated polarization configuration, leading to a breakthrough in the trade-off between recoverable energy storge density (14.8 J cm^-3) and efficiency (90.2%) in medium-entropy antiferroelectrics. The embedding of non-polar phase regions in the incommensurate antifer

SUBMITTER: Zhou Y 

PROVIDER: S-EPMC11748700 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature