Torsional resonators based on inorganic nanotubes

Yiftach Divon, Roi Levi, Jonathan Garel, Dmitri Golberg, Reshef Tenne, Ernesto Joselevich, Assaf Yaakobovitz

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

We study for the first time the resonant torsional behaviors of inorganic nanotubes, specifically tungsten disulfide (WS2) and boron nitride (BN) nanotubes, and compare them to that of carbon nanotubes. We have found WS2 nanotubes to have the highest quality factor (Q) and torsional resonance frequency, followed by BN nanotubes and carbon nanotubes. Dynamic and static torsional spring constants of the various nanotubes were found to be different, especially in the case of WS2, possibly due to a velocity-dependent intershell friction. These results indicate that inorganic nanotubes are promising building blocks for high-Q nanoelectromechanical systems (NEMS).
Original languageEnglish GB
Pages (from-to)28-35
Number of pages8
JournalNano Letters
Volume17
Issue number1
DOIs
StatePublished - 2017

Keywords

  • Inorganic nanotubes
  • Nanoelectromechanical systems (NEMS)
  • Nanomechanics
  • Nanotube
  • Oscillator
  • Torsion

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

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