Tailoring energy-storage performance in antiferroelectric PbHfO3 thin films

• DOI: 10.1016/j.matdes.2021.109666
• Publication Date: 2021-03-18T08:38:54Z
• Authors: Xian-Xiong Huang; Tian-Fu Zhang; Wei Wang; Peng-Zu Ge; Xin-Gui Tang
• Keywords: Antiferroelectricity; Thermal Stability; Power density

Among all dielectrics, antiferroelectric (AFE) materials have attracted wide attention due to the excellent energy-storage performance. In this paper, PbHfO3 (PHO) AFE films were prepared for first time and microstructure, property performance studied. X-ray diffraction analysis indicated that annealing temperature played a key role in crystallinity phase composition. Due coexistent of fine grains amorphous phase, PHO annealed at 650 °C displayed not only optimal density energy efficiency, but also thermal stability fatigue endurance. Compared with 750 °C, recoverable efficiency samples increased by 50% 100%, respectively. These results demonstrate film is promising candidate applications power electronics systems.