STM imaging of carbon nanotube point defects

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8 Citations (Scopus)


In this work the STM investigation of nanotube point defects created by ion irradiation (e.g. vacancies) is presented. The defects appeared as hillock-like features on the STM images. These defects were compared with similar features observed on the STM images of as-grown coiled carbon nanotubes. In this case the observed hillock-like features were attributed to the non-hexagonal carbon rings, which are responsible for the growth of bent and coiled nanotube structures. For irradiation, multi-walled carbon nanotubes produced by the arc-discharge method were dispersed on highly oriented pyrolitic graphite (HOPG) surface and irradiated with Ar + ions of 30 keV, using a low dose of D = 5 ×10 11 ions/cm 2.

Original languageEnglish
Pages (from-to)1825-1829
Number of pages5
JournalPhysica Status Solidi (A) Applications and Materials Science
Issue number6
Publication statusPublished - Jun 1 2007

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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