Nano Archive

Assembties of carbon nanotubes and unencapsulated sub-10-nm gold nanoparticles

Hang, Qingling and Maschmann, Matthew R. and Fisher, Timothy S. and Janes, David B. (2007) Assembties of carbon nanotubes and unencapsulated sub-10-nm gold nanoparticles. SMALL, 3 (7). pp. 1266-1271.

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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.

Item Type:Article
Uncontrolled Keywords:carbon nanotubes; gold; indirect evaporation; nanoparticles
Subjects:Material Science > Functional and hybrid materials
Analytical Science > Nanotechnology for sensing and actuating
Physical Science > Nano objects
Material Science > Nanochemistry
ID Code:2301
Deposited By:Anuj Seth
Deposited On:18 Dec 2008 16:31
Last Modified:20 Jan 2009 10:43

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