Integration and characterization of a ferroelectric polymer PVDF-TrFE into the grain boundary structure of ZnO via cold sintering

In this study, the Cold Sintering Process (CSP) is used to design ceramic-polymer composites with Polyvinylidene fluoride Trifluoroethylene (PVDF-TrFE), a ferroelectric co-polymer, as an active intergranular grain boundary phase in a semiconducting Zinc Oxide (ZnO) electroceramic matrix. The conductivity is modeled with Schottky thermionic emission and Fowler-Nordheim tunneling as a function of both temperature and voltage. In addition, through details of the dielectric characterization, the interfaces are also considered with the effective permittivity resulting with a space charge relaxation of the PVDF-TrFE. The Maxwell-Wagner-Sillars (MWS) model was used to predict ~ 3 nm as the thickness of the intergranular PVDF-TrFE phase controlling electrical properties of the composite. Transmission electron microscopy (TEM) investigation of the grain boundary phase confirms the polymer thicknesses to the dimensions predicted from the various electric measurements and subsequent modeling.

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Work Title Integration and characterization of a ferroelectric polymer PVDF-TrFE into the grain boundary structure of ZnO via cold sintering
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Open Access
Creators
  1. Javier Mena-Garcia
  2. Sinan Dursun
  3. Kosuke Tsuji
  4. Sun Hwi Bang
  5. Zhongming Fan
  6. Arnaud Ndayishimiye
  7. Clive Randall
Keyword
  1. Cold sintering
  2. Zinc oxide
  3. Ferroelectric polymer
  4. Grain boundaries
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Journal of the European Ceramic Society
Publication Date February 22, 2022
Publisher Identifier (DOI)
  1. https://doi.org/10.1016/j.jeurceramsoc.2022.01.064
Deposited August 02, 2022

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Version 1
published

  • Created
  • Added J-AmerCerSoc-Apr2022-MenaGarcia-Final.pdf
  • Added Creator Javier Mena-Garcia
  • Added Creator Sinan Dursun
  • Added Creator Kosuke Tsuji
  • Added Creator Sun Hwi Bang
  • Added Creator Zhongming Fan
  • Added Creator Arnaud Ndayishimiye
  • Added Creator Clive Randall
  • Published
  • Updated Keyword, Publication Date Show Changes
    Keyword
    • Cold sintering, Zinc oxide, Ferroelectric polymer, Grain boundaries
    Publication Date
    • 2022-06-01
    • 2022-02-22
  • Updated