Actuation of PVDF cantilever with PEDOT/PSS (DMSO) electrode using ion-assisted-reaction

C. S. Lee, J. Joo, S. Han, J. H. Lee, S. K. Koh

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Bimorph cantilevers were fabricated by using the piezoelectric polymer [poly(vinylidenefluoride), PVDF, β phase] for the active layers and the highly conducting polymer [poly(3,4-ethylenedioxy thiophene)/poly(4- styrenesulfonate), PEDOT/PSS] for the electrodes. In order to make the hydrophilic layer and diffusion barrier on the polymers, the films were modified by an ion-assisted-reaction (IAR) method. The surface energy of the IAR-treated samples was calculated from the measured contact angles. The hydrophilic groups on the IAR-treated samples were verified by X-ray photoelectron spectroscopy (XPS) analysis. In order to confirm the penetration of the epoxy adhesive into the PEDOT/PSS (DMSO as solvent) film, the XPS and the scanning electron microscopy (SEM) images were analyzed. To fabricate the bimorph cantilevers, the two active PVDF layers both having the PEDOT/PSS (DMSO) electrodes were bonded by using epoxy adhesive. The displacement of the cantilevers was measured at the resonance frequency, and the actuation of the device made with the IAR-treated electrode was higher than that of the device made with the pristine electrode.

Original languageEnglish
Pages (from-to)747-750
Number of pages4
JournalJournal of the Korean Physical Society
Volume45
Issue number3
Publication statusPublished - 2004 Sep

Keywords

  • Actuator
  • PEDOT/PSS
  • PVDF
  • Piezoelectric

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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