Radial Corrugations of Multi-Walled Carbon Nanotubes Driven by Inter-Wall Nonbonding Interactions

Xu Huang, Wentao Liang, Sulin Zhang

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We perform large-scale quasi-continuum simulations to determine the stable cross-sectional configurations of free-standing multi-walled carbon nanotubes (MWCNTs). We show that at an inter-wall spacing larger than the equilibrium distance set by the inter-wall van der Waals (vdW) interactions, the initial circular cross-sections of the MWCNTs are transformed into symmetric polygonal shapes or asymmetric water-drop-like shapes. Our simulations also show that removing several innermost walls causes even more drastic cross-sectional polygonization of the MWCNTs. The predicted cross-sectional configurations agree with prior experimental observations. We attribute the radial corrugations to the compressive stresses induced by the excessive inter-wall vdW energy release of the MWCNTs. The stable cross-sectional configurations provide fundamental guidance to the design of single MWCNT-based devices and shed lights on the mechanical control of electrical properties.

Original languageEnglish (US)
Article number53
Pages (from-to)1-6
Number of pages6
JournalNanoscale Research Letters
Volume6
Issue number1
DOIs
StatePublished - Jan 2011

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Carbon Nanotubes
Carbon nanotubes
carbon nanotubes
interactions
configurations
polygonization
sheds
Compressive stress
luminaires
Electric properties
simulation
electrical properties
spacing
continuums
Water
causes
cross sections
water

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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Radial Corrugations of Multi-Walled Carbon Nanotubes Driven by Inter-Wall Nonbonding Interactions. / Huang, Xu; Liang, Wentao; Zhang, Sulin.

In: Nanoscale Research Letters, Vol. 6, No. 1, 53, 01.2011, p. 1-6.

Research output: Contribution to journalArticle

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