An approach to durable poly(vinylidene fluoride) thin film loudspeaker

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

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The piezoelectric poly(vinylidene fluoride) (PVDF) surface possessing low surface energy was modified by the ion-assisted-reaction (IAR) method for the application of thin film speaker. The IAR-treated hydrophilic PVDF surface was investigated using atomic force microscopy and x-ray photoelectron spectroscopy. The adhesion strength between various types of electrodes and the film was dramatically improved due to the hydrophilic functional groups, such as -C-O-, -(C=O)-, -(C=O)-O-, and so forth. A durable loudspeaker film was fabricated by enhancing the adhesion between the screen-printed poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS) and the modified PVDF films. The PVDF speaker film with the PEDOT/PSS electrode showed higher durability, flatter sound pressure level characteristics, and easier processability compared to metals or indium tin oxide electrodes.

Original languageEnglish
Pages (from-to)2904-2911
Number of pages8
JournalJournal of Materials Research
Volume18
Issue number12
Publication statusPublished - 2003 Dec 1

Fingerprint

Loudspeakers
loudspeakers
vinylidene
fluorides
Thin films
thin films
Electrodes
electrodes
adhesion
Ions
Bond strength (materials)
Photoelectron spectroscopy
sound pressure
Tin oxides
durability
Interfacial energy
indium oxides
Indium
Functional groups
x ray spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Lee, C. S., Kim, J. Y., Lee, D. E., Joo, J., Han, S., Beag, Y. W., & Koh, S. K. (2003). An approach to durable poly(vinylidene fluoride) thin film loudspeaker. Journal of Materials Research, 18(12), 2904-2911.

An approach to durable poly(vinylidene fluoride) thin film loudspeaker. / Lee, C. S.; Kim, J. Y.; Lee, D. E.; Joo, Jinsoo; Han, S.; Beag, Y. W.; Koh, S. K.

In: Journal of Materials Research, Vol. 18, No. 12, 01.12.2003, p. 2904-2911.

Research output: Contribution to journalArticle

Lee, CS, Kim, JY, Lee, DE, Joo, J, Han, S, Beag, YW & Koh, SK 2003, 'An approach to durable poly(vinylidene fluoride) thin film loudspeaker', Journal of Materials Research, vol. 18, no. 12, pp. 2904-2911.
Lee CS, Kim JY, Lee DE, Joo J, Han S, Beag YW et al. An approach to durable poly(vinylidene fluoride) thin film loudspeaker. Journal of Materials Research. 2003 Dec 1;18(12):2904-2911.
Lee, C. S. ; Kim, J. Y. ; Lee, D. E. ; Joo, Jinsoo ; Han, S. ; Beag, Y. W. ; Koh, S. K. / An approach to durable poly(vinylidene fluoride) thin film loudspeaker. In: Journal of Materials Research. 2003 ; Vol. 18, No. 12. pp. 2904-2911.
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