Functionalized metallic carbon nanotube devices for pH sensing

被引：56

作者：

Maroto, Alicia

Balasubramanian, Kannan

Burghard, Marko

Kern, Klaus

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] Univ Rovira & Virgili, Chemometr Qualimetr & Nanosensors Grp, Tarragona 43007, Spain

来源：

CHEMPHYSCHEM | 2007年 / 8卷 / 02期

关键词：

carbon nanotubes; electrochemistry; functionalization; sensors; surface chemistry;

D O I：

10.1002/cphc.200600498

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A pH sensor based upon gentle covalent modification of individual metallic single-wall carbon nanotubes is demonstrated. The sensing mechanism relies upon the protonation-dependent charge carrier scattering (see figure) by N,N-diethylaniline moieties anchored to the tube sidewall. This novel approach holds promise to extend the accessible range of nanotube-based (bio)chemical sensors. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：220 / 223

页数：4

共 25 条

[21] Nonvolatile molecular memory elements based on ambipolar nanotube field effect transistors [J].