Unfolding dielectric breakdown effects on energy storage performances of modified (Sr0.98Ca0.02)(Ti1‐xZrx)O3 ceramics

• DOI: 10.1111/ijac.12847
• Publication Date: 2017-12-16T22:48:11Z
• Authors: Qu Luo; Zhonghua Yao; Guifang Zhang; Lin Zhang; Juan Xie; Hua Hao; Minghe Cao; Hanxing Liu
• Keywords: Hysteresis; Dielectric loss

Abstract Dielectric materials with large maximum polarization but small lossy hysteresis, high electrical breakdown, and postponed can store a amount of energy are thus promising candidates for storage applications. In this work, dielectric capacitor based on (Sr 0.98 Ca 0.02 )(Ti,Zr)O 3 system achieved the elevated performances calculated from polarization‐electric field hysteresis loops due to enhanced breakdown strength by Zr substitution. relaxation could be ascribed appearance doubly ionized oxygen vacancies verified activation energy. For studied system, dominated enhancement because difference ferroelectric activity cation stability between Ti ions. The optimal Zr‐modified composition exhibited better in contrast pure )TiO , suggesting that they might an emerging candidate next‐generation high‐energy devices.