Investigation of fatigue characteristics of polarization reversal in vinylidene fluoride/trifluoroetylene copolymer thin films

Ken Sakamoto, Takashi Nakajima, Yusuke Arayashiki, Yoshiyuki Takahashi, Takeo Furukawa

Research output: Contribution to conferencePaperpeer-review

Abstract

As me polarization in a vinylidene fluoride/trifluoroethylene copolymer is reversed repeatedly, it shows the fatigue phenomena: the reduction of remanent polarization (Pr), the increase in switching time (τs). The electrode area may also decreased by burning and eventually breakdown occurs. Such characteristics are shown to depend on the species of electrodes, thickness, amplitude of the applied electric field and the repeating cycle of the polarization reversal. Pr increases up to repeating cycles of 104 and then decreases linearly to the logarithm of the cycles. These phenomena are suppressed if higher repeating frequency or lower voltage amplitude are adopted.

Original languageEnglish
Number of pages1
Publication statusPublished - 2006 Dec 1
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: 2006 Sep 202006 Sep 22

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
CountryJapan
CityToyama
Period06/9/2006/9/22

Keywords

  • Fatigue
  • Ferroelectrics
  • Polarization reversal
  • Thin film
  • VDF/TrFE

ASJC Scopus subject areas

  • Engineering(all)

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