Organic based flexible speaker through enhanced conductivity of PEDOT/PSS with various solvents

被引：42

作者：

Lee, CS

Kim, JY

Lee, DE

Koo, YK

Joo, J ^{[1
]}

Han, S

Beag, YW

Koh, SK

机构：

[1] Korea Univ, Dept Phys, Seoul 136701, South Korea

[2] P&I Corp, Seoul 131221, South Korea

[3] Korea Inst Sci & Technol, Thin Film Technol Res Ctr, Seoul 130650, South Korea

来源：

SYNTHETIC METALS | 2003年 / 135卷 / 1-3期

关键词：

PVDF; PEDOT/PSS; ion assisted reaction; piezoelectric polymer; sound pressure level;

D O I：

10.1016/S0379-6779(02)01026-3

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) and Cu as electrodes. DC conductivity (sigma(DC)) of pristine PEDOT/PSS increases from 0.8 to similar to 80 S/cm with adding various organic solvents [dimethyl sulfoxide (DMSO), N, N-dimethyl formamide (DMF), tetrahydrofuran (THF)]. The increase of sigma(DC) of PEDOT/PSS results from screening effect of organic solvents. Frequency response of sound pressure level (SPL) of film speaker is discussed in term of total current by applied electric field. The SPL of PVDF film speaker with highly conducting PEDOT/PSS (DMSO) electrode shows more flat SPL in the frequency range from 400 Hz to 10 kHz compare to Cu or ITO electrode.

引用

页码：13 / 14

页数：2

共 9 条

[1] Active control of sound radiation from a plate using a polyvinylidene fluoride volume displacement sensor [J].