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Energy storage and thermodynamics of PNZST thick films with coexisting antiferroelectric and ferroelectric phases

  • Quan Liang Zhao*
  • , Yi Kai Wang
  • , Guang Ping He
  • , Jie Jian Di
  • , Lei Zhao
  • , Ting Ting Su
  • , Meng Ying Zhang
  • , Zhi Ling Hou
  • , Dawei Wang*
  • *Corresponding author for this work
  • North China University of Technology
  • Beijing University of Chemical Technology
  • University of Sheffield

Research output: Contribution to journalArticlepeer-review

Abstract

Pb0.99Nb0.02(Zr0.85Sn0.13Ti0.02)O3 (PNZST) antiferroelectric (AFE) thick films are successfully deposited on silicon-based Pt and LaNiO3 electrodes by a sol-gel method. The coexistence of ferroelectric (FE) and AFE phases are revealed in PNZST films by XRD, electric-induced hysteresis loops, dielectric, and leakage current properties. Comparing with PNZST/Pt film, larger recoverable energy density and efficiency are obtained in PNZST/LaNiO3 film due to the lower FE phase proportion. It is analyzed and demonstrated by a thermodynamic model of AFE and FE coexistence system. In addition, the fatigue behaviors of both AFE films are also affected by the proportion of the coexisting FE phase. PNZST/LaNiO3 film exhibits good fatigue resistance on energy storage even after 1010 switching cycles, which is attractive to pulsed power applications.

Original languageEnglish
Pages (from-to)154-161
Number of pages8
JournalInternational Journal of Applied Ceramic Technology
Volume18
Issue number1
DOIs
StatePublished - 1 Jan 2021
Externally publishedYes

Keywords

  • antiferroelectric
  • electrodes
  • thermodynamics
  • thick films

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