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Full Paper
Assemblies of Carbon Nanotubes and Unencapsulated Sub-10-nm Gold Nanoparticles
Article first published online: 8 MAY 2007
DOI: 10.1002/smll.200600703
Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Hang, Q., Maschmann, Matthew R., Fisher, Timothy S. and Janes, David B. (2007), Assemblies of Carbon Nanotubes and Unencapsulated Sub-10-nm Gold Nanoparticles. Small, 3: 1266–1271. doi: 10.1002/smll.200600703
Publication History
- Issue published online: 22 JUN 2007
- Article first published online: 8 MAY 2007
- Manuscript Received: 14 DEC 2006
- Abstract
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Keywords:
- carbon nanotubes;
- gold;
- indirect evaporation;
- nanoparticles
Abstract
The development of assemblies consisting of unencapsulated, sub-10-nm gold particles attached to individual carbon nanotubes (CNTs) with diameters of 2 nm is described. The assemblies are formed on the surface of a porous anodic alumina (PAA) template on which the CNTs (single- or double-walled) are grown by plasma-enhanced chemical vapor deposition. The Au nanoparticles are formed through an indirect evaporation technique using a silicon nitride membrane mask, and diffuse along the PAA surface into the regions containing CNTs. The nanoparticles bind relatively strongly to the CNTs, as indicated by observations of nanoparticles that are suspended over pores or that move along with the CNTs. This approach may provide a new method to functionalize CNTs for chemical or biological sensing and fundamental studies of nanoscale contacts to CNTs.