Nano chemical sensors with polymer-coated carbon nanotubes

被引：58

作者：

Li, Jing ^{[1
]}

Lu, Yijiang ^{[1
]}

Meyyappan, M. ^{[1
]}

机构：

[1] NASA, Ames Res Ctr, Ctr Nanotechnol, Moffett Field, CA 94035 USA

来源：

IEEE SENSORS JOURNAL | 2006年 / 6卷 / 05期

关键词：

carbon nanotubes (CNTs); chemical sensing; nanotechnology; polymer coating; sensors;

D O I：

10.1109/JSEN.2006.881018

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A simple sensor platform consisting of an interdigitated electrode (IDE) pattern has been fabricated for sensing gas and organic vapors. Purified single-walled carbon nanotubes (SWNTs) in the form of a network laid on the IDE by solution casting serve as the sensor material. The electrical conductivity of the SWNT network changes reproducibly upon exposure to various gases and vapors. Selectivity to specific gases, for example, chlorine and hydrochloric acid vapor, is demonstrated by coating the SWNTs with polymers such as chlorosulfonated polyethylene and hydroxypropyl cellulose.

引用

页码：1047 / 1051

页数：5

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