Time-dependent electrical double layer with blocking electrode

被引：17
作者：
Han, Z. J. [1 ]
Morrow, R. [2 ]
Tay, B. K. [1 ]
McKenzie, D. [2 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[2] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia
来源：
APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 04期
关键词：
biochemistry; electrochemical electrodes; electrochemistry; electrolytes; molecular biophysics; FILM; FIELD;
D O I：
10.1063/1.3077605
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This paper deals with the experimental observation of time-dependent electrical double layer (EDL) in electrolyte. A potential-distance diagram is used to fully understand different stages in the formation of EDL. The influence of the thickness of the blocking layer and the ionic strength to the formation of EDL is discussed based on the equivalent circuit. With this simple method, it is found that in addition to Debye screening length, the frequency has to be considered if an alternating electric field is used to control the movement of charged biomolecules inside EDL.
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页数：3
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