Materials 2017, 10(5), 478; doi:10.3390/ma10050478
The Vibration of a Linear Carbon Chain in Carbon Nanotubes
Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi 214122, China
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Academic Editor: Rafael Luque
Received: 18 March 2017 / Revised: 20 April 2017 / Accepted: 20 April 2017 / Published: 29 April 2017
Abstract
An explicit solution for the vibration of a carbon chain inside carbon nanotubes (CNTs) was obtained using continuum modeling of the van der Waals (vdW) interactions between them. The effect of the initial tensile force and the amplitude of the carbon chain as well as the radii of the CNTs on the vibration frequency were analyzed in detail, respectively. Our analytical results show that the vibration frequency of the carbon chain in a (5,5) CNT could be around two orders of magnitude higher than that of an independent carbon chain without initial tensile force. For a given CNT radius, the vibration frequency nonlinearly increases with increasing amplitude and initial tensile force. The obtained analytical cohesive energy and vibration frequency are reasonable by comparison of present molecular dynamics (MD) simulations. These findings will be a great help towards understanding the vibration property of a nanowire in nanotubes, and designing nanoelectromechanical devices. View Full-TextKeywords:
carbon chain; vibration; carbon nanotube; van der Waals interactions
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Ding, D.; Zhao, Y.; Dong, S.; Yu, P.; Wang, L.; Zhao, J. The Vibration of a Linear Carbon Chain in Carbon Nanotubes. Materials 2017, 10, 478.
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