Impedance spectra analysis to characterize interdigitated electrodes as electrochemical sensors

被引：31

作者：

Rana, Sunil ^{[1
]}

Page, Robin H. ^{[1
]}

McNeil, Calum J. ^{[1
]}

机构：

[1] Newcastle Univ, Sch Med, Inst Cellular Med, Newcastle Upon Tyne NE2 4HH, Tyne & Wear, England

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 24期

关键词：

Electrochemical impedance spectroscopy; Interdigitated electrodes; Geometric capacitance; Solution resistance; Solution conductivity; IMPEDIMETRIC IMMUNOSENSOR; BIOSENSORS;

D O I：

10.1016/j.electacta.2011.07.055

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Interdigitated electrode (IDE) arrays have been used widely for electrochemical impedance spectroscopy (EIS). Here, we present an in-depth analysis of interdigitated electrode impedance spectra. Such an analysis is necessary for the identification of the contribution of each interdigitated electrode circuit element to the impedance change. We also discuss the importance of the solution conductivity in impedance spectroscopy showing that the use of low conductivity solutions is advantageous when inter-digit solution resistance and geometric capacitance need to be monitored. (C) 2011 Elsevier Ltd. All rights reserved.

引用

收藏

页码：8559 / 8563

页数：5

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