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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 19    No. 4    August 2009

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Surface functionalization of single-walled carbon nanotubes using metal nanoparticles
Goo-Hwan JEONG

Department of Advanced Materials Science and Engineering, Kangwon National University,
Chuncheon, Kangwon, 200-701, Korea

Abstract:Surface functionalization of suspended single-walled carbon nanotubes (SWNTs) using metal (Au) nanoparticles (NPs) is reported. SWNTs are grown on three-dimensionally patterned substrates by thermal chemical vapor deposition and successfully functionalized with Au NPs. Ethylendiamine is mainly used to functionalize SWNTs surface with amino groups before introducing Au NPs. From Raman scattering spectroscopy of the Au-functionalized suspended SWNTs, enhanced Raman scattering properties are obtained. The results suggest that the attached Au NPs may contribute to the enhancement of resonant phenomena. By measuring the electric properties after each functionalization process, it is found that Au NPs act as electron acceptor to the amine functionalized SWNTs.

 

Key words: carbon nanotubes; surface functionalization; metal nanoparticles; Raman spectroscopy

ISSN 1672-7029
CN 43-1423/U

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