Study on a Nonlinear Antiferroelectric Capacitor

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• 作者：Ran Xu ; Dou Tian ; Zhuo Xu ; Yujun Feng
• 关键词：Capacitor ; Antiferroelectric ; High energy storage density ; Tunability
• 刊名：Journal of Fusion Energy
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：34
• 期：4
• 页码：717-720
• 全文大小：837 KB
• 参考文献：1.G.A. Mesyats, Pulsed Power (Springer, Berlin Heidelberg New York, 2005). ISBN 0-306-48654-7
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  6.S.E. Young, J.Y. Zhang, W. Hong et al., Mechanical self-confinement to enhance energy storage density of antiferroelectric capacitors. J. Appl. Phys. 113, 054101 (2013)ADS View Article
  
• 作者单位：Ran Xu (1)
  Dou Tian (1)
  Zhuo Xu (1)
  Yujun Feng (1)
  
  1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi’an Jiaotong University, Xi’an, 710049, Shaanxi, People’s Republic of China
  
• 刊物类别：Engineering
• 刊物主题：Nuclear Engineering
  
• 出版者：Springer Netherlands
• ISSN：1572-9591

文摘

To develop high energy storage density capacitors for various fields, such as primary energy systems for fusion facilities, antiferroelectric, a type of perspective dielectric, was studied in this article. The relationship of electric displacement and electric field of antiferroelectric is nonlinear and has the property of hysteresis loop. Because of the sharp increasing of dielectric constant near the switching field, antiferroelectric is a type of potential high energy storage density material. Thus, a sample of antiferroelectric capacitor was made and its discharging property was studied. On account of the nonlinearity of antiferroelectric capacitor, the discharging current of LRC circuit in under-damping situation is not a strict equivalent periodic sine wave. The periods of discharging current decrease in the discharging process. In addition, under different charging voltage, the periods are quite different, which indicates the changing of capacitance. The capacitance of first half period under 0.86 and 2.98?kV is 2619 and 3013?pF, respectively. All these properties make antiferroelectric a type of potential dielectric with high energy storage density and tunability.