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Formation of Nanotube-Based Quantum Dots With Strain and Addimers

Published online by Cambridge University Press:  10 February 2011

D. Orlikowski ,
M. Buongiorno Nardelli ,
J. Bernholc  and
C. Roland
D. Orlikowski
Affiliation:
Department of Physics, North Carolina State University Raleigh, NC 27695, [email protected]
M. Buongiorno Nardelli
Affiliation:
Department of Physics, North Carolina State University Raleigh, NC 27695, [email protected]
J. Bernholc
Affiliation:
Department of Physics, North Carolina State University Raleigh, NC 27695, [email protected]
C. Roland
Affiliation:
Department of Physics, North Carolina State University Raleigh, NC 27695, [email protected]
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Abstract

We present the results of a large-scale molecular dynamics investigation of addimers on strained carbon nanotubes. We find that addimers induce a new set of transformations that lead to the formation of extended defects that are actually short segments of tubes of altered helicity. As these defects wrap themselves about the circumference of the nanotube, this suggests that the combination of addimers and strain may well lead to the formation of nanotube-based quantum dots. The formation of these quantum dots is most favorable for the (n.O) zigzag tubes. For these tubes, addimers induce plastic transformations in tubes that normally display brittle behavior.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 593: Symposium U – Amorphous & Nanostructured Carbon , 1999 , 149
Copyright
Copyright © Materials Research Society 2000

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