Unzipping of functionalized multiwall carbon nanotubes induced by STM

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • M Conceição Paiva
  • ,
  • Wei Xu, Denmark
  • M Fernanda Proença
  • ,
  • Rui M Novais
  • ,
  • Erik Laegsgaard, Denmark
  • Flemming Besenbacher
  • Interdisciplinary Nanoscience Center
  • Department of Physics and Astronomy
Carbon nanotubes (CNTs), functionalized by a cycloaddition reaction, were studied by ultrahigh vacuum scanning tunneling microscopy (STM). The STM images provided evidence for partial or total unzipping of the outer CNT layer. The formation of graphene ribbons was triggered by the STM tip, under specific operating conditions. A model for the unzipping is proposed, based on the perturbation of the pi-conjugation along the CNT surface induced by the cycloaddition reaction.
Original languageEnglish
JournalNano Letters
Pages (from-to)1764-8
Number of pages5
Publication statusPublished - 12 May 2010

    Research areas

  • Crystallization, Macromolecular Substances, Materials Testing, Microscopy, Scanning Tunneling, Molecular Conformation, Nanotechnology, Nanotubes, Carbon, Particle Size, Surface Properties

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