Ergodic Relaxor State with High Energy Storage Performance Induced by Doping Sr_{lus-plus">0.85}Bi_{lus-plus">0.1}TiO_lus-plus">3 in Bi_{lus-plus">0.5}Na_{lus-plus">0.5}TiO_lus-plus">3 Ceramics

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• 作者：Qing-Ning Li ; Chong-Rong Zhou ; Ji-Wen Xu ; Ling Yang…
• 关键词：Energy ; storage ; dielectric properties ; ergodic relaxor ferroeletrics ; polarization hysteresis loops
• 刊名：Journal of Electronic Materials
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：45
• 期：10
• 页码：5146-5151
• 全文大小：1,813 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Optical and Electronic Materials
  Characterization and Evaluation Materials
  Electronics, Microelectronics and Instrumentation
  Solid State Physics and Spectroscopy
  
• 出版者：Springer Boston
• ISSN：1543-186X
• 卷排序：45

文摘

The large maximum polarization P_max and low remnant polarization P_r in relaxor ferroelectrics are key features for the energy storage density (W) and energy-storage efficiency (η) in materials selection. In this study, the ergodic relaxor (ER) state with high energy storage performance associated with low P_r and large P_max, induced by Sr_0.85Bi_0.1TiO₃(SBT) addition in (1 − x)Bi_0.5Na_0.5TiO₃-xSr_0.85Bi_0.1TiO₃ (BNT-SBTx with x = 0.25–0.45, Bi_0.5Na_0.5TiO₃ abbreviated as BNT) ceramics has been observed. In particular, significantly increased energy storage density (W = 1.5 J/cm3) and energy-storage efficiency (η = 73%) are obtained for BNT-SBT ergodic relaxor ceramics. These results suggest a new means of designing lead-free energy-storage materials.