Effect of defects on the motion of carbon nanotube thermal actuator

Using molecular dynamics simulations, we investigate the movement behavior of double-walled carbon nanotube containing single atom vacancy defect and Stone–Wales defect. The carbon nanotube thermal actuator consists of a short outer tube and a long inner tube driven under temperature gradient. It is...

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Bibliographic Details
Published in:Nanotechnology reviews (Berlin) 2019-01, Vol.8 (1), p.79-89
Main Authors: Lin, Xiaotian, Han, Qiang, Huang, Jianzhang
Format: Article
Language:English
Subjects:
Actuators
Carbon
Carbon nanotube
defect
Defects
Molecular dynamics
Nanotechnology
Nanotubes
oscillation
Single wall carbon nanotubes
temperature gradient
Temperature gradients
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Summary:Using molecular dynamics simulations, we investigate the movement behavior of double-walled carbon nanotube containing single atom vacancy defect and Stone–Wales defect. The carbon nanotube thermal actuator consists of a short outer tube and a long inner tube driven under temperature gradient. It is found that the presence of these defects introduces resistance of the nanotube systems, which affects their amplitude and speed. The oscillation motion of the outer nanotube is found possible to be produced, which can be achieved by devising proper initial position of the outer tube, the defect type and the temperature gradient. Our results demonstrate the effect of defects on the motion of carbon nanotubes and show that it is possible to control and tune the motion behavior of nanotubes through the introduction of defects.
ISSN:2191-9097
2191-9089
2191-9097
DOI:10.1515/ntrev-2019-0007