Individual single-walled carbon nanotubes as nanoelectrodes for electrochemistry

被引：237

作者：

Heller, I ^{[1
]}

Kong, J ^{[1
]}

Heering, HA ^{[1
]}

Williams, KA ^{[1
]}

Lemay, SG ^{[1
]}

Dekker, C ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands

来源：

NANO LETTERS | 2005年 / 5卷 / 01期

关键词：

D O I：

10.1021/nl048200m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate the use of individual single-walled carbon nanotubes (SWNTs) as nanoelectrodes for electrochemistry. SWNTs were contacted by nanolithography, and cyclic voltammetry was performed in aqueous solutions. Interestingly, metallic and semiconducting SWNTs yielded similar steady-state voltammetric curves. We clarify this behavior through a model that considers the electronic structure of the SWNTs. Interfacial electron transfer to the SWNTs is observed to be very fast but can nonetheless be resolved due to the nanometer critical dimension of SWNTs. These studies demonstrate the potential of using a SWNT as a model carbon nanoelectrode for electrochemistry.

引用

页码：137 / 142

页数：6

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