Thermal Vibration-Induced Rotation of Nano-Wheel: A Molecular Dynamics Study

Duan, H, Shi, J, Cai, K and Qin, Q 2018, 'Thermal Vibration-Induced Rotation of Nano-Wheel: A Molecular Dynamics Study', International journal of molecular sciences, vol. 19, no. 11, pp. 1-15.


Document type: Journal Article
Collection: Journal Articles

Title Thermal Vibration-Induced Rotation of Nano-Wheel: A Molecular Dynamics Study
Author(s) Duan, H
Shi, J
Cai, K
Qin, Q
Year 2018
Journal name International journal of molecular sciences
Volume number 19
Issue number 11
Start page 1
End page 15
Total pages 15
Publisher MDPIAG
Abstract By bending a straight carbon nanotube and bonding both ends of the nanotube, a nanoring (or nano-wheel) is produced. The nanoring system can be driven to rotate by fixed outer nanotubes at room temperature. When placing some atoms at the edge of each outer tube (the stator here) with inwardly radial deviation (IRD), the IRD atoms will repulse the nanoring in their thermally vibration-induced collision and drive the nanoring to rotate when the repulsion due to IRD and the friction with stators induce a non-zero moment about the axis of rotational symmetry of the ring. As such, the nanoring can act as a wheel in a nanovehicle. When the repulsion is balanced with the intertubular friction, a stable rotational frequency (SRF) of the rotor is achieved. The results from the molecular dynamics simulation demonstrate that the nanowheel can work at extremely low temperature and its rotational speed can be adjusted by tuning temperature.
Subject Nanoelectromechanical Systems
Keyword(s) carbon nanotube
molecular dynamics
nanomachine
thermal vibration
DOI - identifier 10.3390/ijms19113513
Copyright notice © 2018 by the authors. Licensee MDPI, Basel, Switzerland. Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
ISSN 1422-0067
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