Enhanced energy storage properties and stability in (Pb0.895La0.07)(ZrxTi1-x)O3 antiferroelectric ceramics |
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| Affiliation: | 1. School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, 201620, PR China;2. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China;1. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People''s Republic of China;2. University of Chinese Academy of Sciences, Beijing 100049, People''s Republic of China;1. Functional Materials Research Laboratory, School of Materials Science & Engineering, Tongji University, No. 4800, Cao’an Road, Shanghai, 201804, China;2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an, 710049, China;1. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, PR China;2. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA;1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, People’s Republic of China;2. National Key Laboratory of Schock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, People’s Republic of China |
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| Abstract: | Recently, the (Pb,La)(Zr,Ti)O3 antiferroelectric materials with slim-and-slanted double hysteresis loops have been widely drawn in the application of advanced pulsed power capacitors due to its low strain characteristic. In this work, the energy storage properties of (Pb0.895La0.07)(ZrxTi1-x)O3 ceramics with different Zr contents are researched thoroughly because the substitution of Ti4+ by Zr4+ can reduce the tolerance factor t, enhancing the antiferroelectricity. The polarization-electric field hysteresis loops of the PLZT ceramics become slimmer with increasing Zr content. The highest recoverable energy storage density (Wre) of 3.38 J/cm3 and ultrahigh energy efficiency (η) of 86.5% are achieved in (Pb0.895La0.07)(Zr0.9Ti0.1)O3 ceramic. The (Pb0.895La0.07)(Zr0.9Ti0.1)O3 ceramic also hold fairly thermal stability (relative variation of Wre is less than 28% over 30 °C-120 °C), excellent frequency stability (10–1000 Hz) and good fatigue endurance. These results demonstrate that the (Pb0.895La0.07)(Zr0.9Ti0.1)O3 ceramic can be a desirable material for dielectric energy storage capacitors, especially for pulse power technology. |
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| Keywords: | Antiferroelectric ceramics Energy storage performance |
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