Carbon Nanotubes and AFM
- Hi Z and all Carbon Nanotubers:
The print edition of Nature Nanotechnology, Vol. 3, No. 6 June
(2008) includes an article on page 337 "Atomically resolved
mechanical response of individual metallofullerence molecules
confined inside carbon nanotubes" by M. Ashino et al.
An online version was published earlier doi:10.1038/nnano.2008.126
Researchers from Germany, The Netherlands, Hong Kong and the UK
state in the abstract: "The hollow core inside a carbonnanotube can
be used to confine single molecules and it is now possible to image
the movement of such molecules inside nanotubes...Here we report on
precise measurements of the mechanical responses of individual
mettlofullerene molecules (Dy@C.82) confined inside single-walled
carbon nanotubes to the atom at the tip of an atomic force microscope
operated in dynamic mode."
The Dy@C.82 metallofullerene molecules were a dysprosium atom
encapsulated within a C.82 fullerene and then put into SWNTs using
thermal treaments. They deposited these " 'peapod' structures onto
insulating SiO.2 layers on silicon substrates. The AFM allowed "the
determination of atomic structures independently of the electronic
properties." This is an advantage over the use of STM analysis.
Topographies of empty SWNT were compared with those of the (Dy@C.82)
@SWNT peapod making it possible to "identify two types of qualitively
Some papers you might also consider reading:
1-Encapsulated C.60 in Carbon Nanotubes B.W. Smith et al.
Nature 396, 323-324 (1998) I give it ***(three stars) :)
2- Water Conduction through the hydrophobic Channel of a Carbon
Nanotube G. Hummer et al.
Nature 414, 188-190 (2001) ***
3-Imaging of Single Organic Molecules In Motion M. Koshino
Science 316, 853 (2007) ****