Capacitance and conductance of single-walled carbon nanotubes in the presence of chemical vapors

被引：134

作者：

Snow, ES ^{[1
]}

Perkins, FK ^{[1
]}

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

来源：

NANO LETTERS | 2005年 / 5卷 / 12期

关键词：

D O I：

10.1021/nl051669c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Simultaneous conductance and capacitance measurements on a single-walled carbon nanotube (SWNT) network are used to extract an intrinsic property of molecular adsorbates. Adsorbates from dilute chemical vapors produce a rapid response in both the capacitance and the conductance of the SWNT network. These responses are caused by a combination of two distinct physiochemical properties of the adsorbates: charge transfer and polarizability. We find that the ratio of the conductance response to the capacitance response is a concentration-independent intrinsic property of a chemical vapor that can assist in its identification.

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页码：2414 / 2417

页数：4

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