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Flexible and transparent organic film speaker by using highly conducting PEDOT/PSS as electrode
被引:60
作者:
Lee, CS
Kim, JY
Lee, DE
Joo, J
[1
]
Wagh, BG
Han, S
Beag, YW
Koh, SK
机构:
[1] Korea Univ, Dept Phys, Seoul 136701, South Korea
[2] Korea Univ, Ctr Electro & Photo Repons Mol, Seoul 136701, South Korea
[3] Korea Inst Sci & Technol, Thin Film Technol Res Ctr, Seoul 130650, South Korea
[4] KKW Coll, Nasik 422209, MS, India
[5] P&I Corp, Seoul 1312221, South Korea
关键词:
PEDOT/PSS;
PVDF;
sound pressure level;
D O I:
10.1016/S0379-6779(03)00199-1
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
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 (sigma(dc)) of pristine PEDOT/PSS increases from 0.8 to similar to80 S/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 27 dB 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. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码:457 / 461
页数:5
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