Influence of water on the frequency of carbon nanotube oscillators

Zhao Qin, Jian Zou, Xi Qiao Feng

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


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 languageEnglish (US)
Pages (from-to)1403-1407
Number of pages5
JournalJournal of Computational and Theoretical Nanoscience
Issue number7
StatePublished - Jul 2008
Externally publishedYes


  • 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


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