Electrochemically modified single-walled carbon nanotubes

被引：9

作者：

Burghard, M.

Maroto, A.

Balasubramanian, K.

Assmus, T.

Forment-Aliaga, A.

Lee, E. J. H.

Weitz, R. T.

Scolari, M.

Nan, F.

Mews, A.

Kern, K.

机构：

[1] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[2] Univ Siegen, Dept Chem Phys, D-57068 Siegen, Germany

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

[4] Ecole Polytech Fed Lausanne, Inst Phys Nanostruct, CH-1015 Lausanne, Switzerland

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2007年 / 244卷 / 11期

关键词：

D O I：

10.1002/pssb.200776102

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on the properties of electrochemically modified SWCNTs bearing a functional organic layer and a low density of noble metal nanoparticles, respectively. First, a novel approach to nanoscale pH sensors is demonstrated which involves the gentle modification of individual metallic tubes via covalent attachment of amino-substituted phenyl groups. Furthermore, gold particles with sizes of a few tens of nanometres deposited onto individual SWCNTs were found to locally enhance the Raman signals of the underlying nanotube. The enhancement imparted by individual gold particles was estimated to be two orders of magnitude. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：4021 / 4025

页数：5

共 15 条

[11] Functionalized metallic carbon nanotube devices for pH sensing [J].