Abstract
Water molecules, which may either be introduced during fabrication of devices or absorbed from servicing environment, affect the performance and reliability of nanodevices and nanosystems. We investigate via theoretical analysis and molecular dynamics simulation the effect of water molecules on the vibration behavior of a double-walled carbon nanotube-based oscillator. It is found that water confined between the two nanotubes may significantly affect the oscillation frequency of the oscillator as a result of the enhancement of van der Waals interaction. An analytical expression is derived for the oscillation frequency in terms of the physical and geometrical parameters of carbon nanotubes and water. The theoretical results have a good agreement with molecular dynamics simulations.
Original language | English (US) |
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Pages (from-to) | 1403-1407 |
Number of pages | 5 |
Journal | Journal of Computational and Theoretical Nanoscience |
Volume | 5 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2008 |
Externally published | Yes |
Keywords
- Carbon nanotube
- Frequency
- Molecular dynamics simulation
- Nano-oscillator
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics
- Computational Mathematics
- Electrical and Electronic Engineering