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

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

doi:10.1557/JMR.2003.0405

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

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

31 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 language	English
Pages (from-to)	2904-2911
Number of pages	8
Journal	Journal of Materials Research
Volume	18
Issue number	12
DOIs	https://doi.org/10.1557/JMR.2003.0405
Publication status	Published - 2003 Dec

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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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.",

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AU - Lee, C. S.

AU - Kim, J. Y.

AU - Lee, D. E.

AU - Joo, J.

AU - Han, S.

AU - Beag, Y. W.

AU - Koh, S. K.

PY - 2003/12

Y1 - 2003/12

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AB - 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.

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

Abstract

ASJC Scopus subject areas

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