Flexible and transparent organic film speaker by using highly conducting PEDOT/PSS as electrode

C. S. Lee, J. Y. Kim, D. E. Lee, Jinsoo Joo, B. G. Wagh, S. Han, Y. W. Beag, S. K. Koh

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Flexible organic film speaker (FOFS) was fabricated with ion-assisted-reaction (IAR) treated poly(vinylidene fluoide) (PVDF) as active layer and poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS), indium tin oxide (ITO), or copper (Cu) as electrode. The PEDOT/PSS materials were screen printed on the PVDF surface. The dc conductivity (σdc) of pristine PEDOT/PSS increases from 0.8 to ∼80S/cm by adding various organic solvents. The sound pressure level (SPL) of PVDF-based FOFS with a highly conducting PEDOT/PSS (dimethyl sulfoxide, DMSO) electrode is 27d B higher than that with a low conducting PEDOT/PSS (H2O) at 1 kHz. The highly conducting PEDOT/PSS (DMSO) as electrode is more suitable to PVDF-based FOFS compared to Cu or ITO because of the stable and more flat SPL, the flexibility, easy patterning, and coating process.

Original languageEnglish
Pages (from-to)457-461
Number of pages5
JournalSynthetic Metals
Volume139
Issue number2
DOIs
Publication statusPublished - 2003 Sep 5

Fingerprint

vinylidene
Dimethyl sulfoxide
Tin oxides
conduction
Indium
Electrodes
electrodes
Acoustic waves
Dimethyl Sulfoxide
Organic solvents
sound pressure
Copper
Coatings
indium oxides
tin oxides
Ions
polyvinylidene fluoride
poly(3,4-ethylene dioxythiophene)
coating
flexibility

Keywords

  • PEDOT/PSS
  • PVDF
  • Sound pressure level

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Flexible and transparent organic film speaker by using highly conducting PEDOT/PSS as electrode. / Lee, C. S.; Kim, J. Y.; Lee, D. E.; Joo, Jinsoo; Wagh, B. G.; Han, S.; Beag, Y. W.; Koh, S. K.

In: Synthetic Metals, Vol. 139, No. 2, 05.09.2003, p. 457-461.

Research output: Contribution to journalArticle

Lee, C. S. ; Kim, J. Y. ; Lee, D. E. ; Joo, Jinsoo ; Wagh, B. G. ; Han, S. ; Beag, Y. W. ; Koh, S. K. / Flexible and transparent organic film speaker by using highly conducting PEDOT/PSS as electrode. In: Synthetic Metals. 2003 ; Vol. 139, No. 2. pp. 457-461.
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