TITLE

Reversible separation of single-walled carbon nanotubes in bundles

AUTHOR(S)
Sahoo, Sangeeta; Maranganti, Ravi; Lastella, Sarah; Mallick, Govind; Karna, Shashi; Sharma, Pradeep; Ajayan, Pulickel M.
PUB. DATE
August 2008
SOURCE
Applied Physics Letters;8/25/2008, Vol. 93 Issue 8, p083120
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We show that electrostatic charging of nanotubes and the consequent repulsion can lead to reversible separation of individual single-walled carbon nanotubes in bundles. Low-energy electron beam irradiation leads to this completely reversible phenomenon. A simple semianalytical model is used to explain the observed separation mechanism. The reversibility of the separation process is attributed to discharging and thermal-fluctuation induced motion of the nanotubes in ambient air. Further, the separation impacts the electrical conductance of small nanotube bundled devices.
ACCESSION #
34198765

 

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