STM observation of asymmetrical Y-branched carbon nanotubes and nano-knees produced by the arc discharge method

Z. Osváth, A. A. Koós, Z. E. Horváth, J. Gyulai, A. M. Benito, M. T. Martínez, W. Maser, L. P. Biró

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The scanning tunneling microscopy (STM) observation of arc-grown Y-branched carbon nanotubes and sharp nanotube bends (nano-knees) is reported. A drilled out graphite rod filled with a nickel/yttrium particle mixture was used as the anode in an arc chamber under He atmosphere of 660-mbar pressure. Straight multi-wall nanotubes, Y-branches and nano-knees were found in a sample taken from the cathodic deposit. The asymmetrical Y-branches and complex nano-knees found in this experiment may be related to the additional use of metals or/and to induced changes of the temperature distribution on the cathode side. It is suggested that complex nano-knees could be new examples for carbon quantum dots.

Original languageEnglish
Pages (from-to)561-564
Number of pages4
JournalMaterials Science and Engineering C
Volume23
Issue number4
DOIs
Publication statusPublished - Jun 10 2003

Keywords

  • Carbon nanotube
  • Nanotube bend
  • Nanotube knee
  • Quantum dot
  • Y-branching

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'STM observation of asymmetrical Y-branched carbon nanotubes and nano-knees produced by the arc discharge method'. Together they form a unique fingerprint.

  • Cite this