Small hysteresis and high energy storage power of antiferroelectric ceramics

Abstract

In this paper, modified Pb ( Zr , Ti ) O 3( PZT ) antiferroelectric (AFE) ceramics system was investigated by traditional solid state method. It was observed that the effect of different contents of Zr / Sn , Zr / Ti on modified PZT antiferroelectrics. With increasing Zr / Sn content, the E AFE (electric field of AFE phase to ferroelectric (FE) phase) value was enlarged. The phase switch field was reduced from FE to AFE (E FA ). The hysteresis loops were changed from "slanted" to "square"-types. With increasing Zr / Ti concentrate, the E AFE value, and also the E FA was enlarged, while the hysteresis switch ΔE was reduced. The hysteresis loops was from "square" to "slanted"-types. The samples with square hysteresis loops are suitable for energy storage capacitor applications, the composition of ceramics was Pb 0.97 La 0.02( Zr 0.90 Sn 0.05 Ti 0.05) O 3, which have the largest energy storage density ~ 4.426J/cm3 at 227 kV/cm, and ΔE was ~80 kV/cm, energy efficient η was about 0.612.