www.nanopicoftheday.org
July 10, 2004
Suspended Single Wall
Nanotubes
Source: Yung Joon
Jung
References:
"Straightening Suspended Single Walled Carbon Nanotubes
by Ion Irradiation" Yung Joon Jung,
Yoshikazu Homma, Robert Vajtai, Yoshihiro Kobayashi, Toshio Ogino, and Pulickel
M. Ajayan.
Nano Lett.; 2004; 4(6) pp 1109 - 1113
Description:
Single walled carbon nanotubes grown suspended between pillars of Si/SiO2
structures are straightened by ion beam scans. In addition, the ion irradiation
selectively removes nanotubes lying on the substrate, leaving the suspended
nanotubes in place. This strategy provides a facile way to produce large area
connected networks of suspended straight nanotubes. Although ion irradiation
induces structural modifications to nanotubes and introduces defects into the
nanotube lattice, the form and dimensions of the nanotubes remain close to that
of original grown structures. Nanotube networks consisting of perfectly straight
and suspended structures could serve as a platform for various applications.
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