Electrochemical polymerization and properties of PEDOT/S-EDOT on neural microelectrode arrays
Electrochemical polymerization and properties of PEDOT/S-EDOT on neural microelectrode arrays
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DOI：
10.1016/j.jelechem.2004.06.024
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发表时间：
2004-11-15
影响因子：
4.5
通讯作者：
Martin, DC
中科院分区：
文献类型：
--
作者：
Xiao, YH;Cui, XY;Martin, DC
将导电聚合物聚（3，4-乙撑二氧噻吩）（PEDOT）掺杂其衍生物磺酸基烷氧基（S-EDOT），沿微加工神经探针的柄沿着电极表面进行电化学聚合。反射傅里叶变换红外光谱证明了所得聚合物的组成。扫描电子显微镜图像的检查表明，薄膜的表面形貌是粗糙的，厚度随沉积时间而变化。PEDOT/S-EDOT涂覆电极的阻抗的大小在从1到10（5）Hz的宽频率范围内低于裸金的阻抗的大小。电极表面的粗糙度导致电阻分量被添加到双层电容。循环伏安法证实了PEDOT/S-EDOT涂层电极的固有氧化还原反应和增加的充电容量。(C)2004 Elsevier B. V.保留所有权利。
The conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT) doped with its derivative sulfonatoalkoxy EDOT (S-EDOT) was electrochemically polymerized on the surface of electrodes along the shank of microfabricated neural probes. Reflective Fourier transform infrared spectroscopy demonstrated the composition of the resultant polymer. Examinations of scanning electron microscope images of the films indicated that the surface morphology was rough and the thickness varied with deposition time. The magnitude of the impedance of the PEDOT/S-EDOT coated electrode was lower than that of bare gold over a wide range of frequencies from 1 to 10(5) Hz. The roughness of the electrode surface resulted in a resistive component being added to the double layer capacitance. Cyclic voltammetry demonstrated the intrinsic redox reaction and the increased charge capacity of the PEDOT/S-EDOT coated electrodes. (C) 2004 Elsevier B.V. All rights reserved.