Mapping of functionalized regions on carbon nanotubes by scanning tunneling microscopy

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8 Citations (Scopus)


Scanning tunneling microscopy gives us the opportunity to map the surface of functionalized carbon nanotubes in an energy resolved manner and with atomic precision. But this potential is largely untapped, mainly due to sample stability issues which inhibit reliable measurements. Here we present a simple and straightforward solution that makes away with this difficulty, by incorporating the functionalized multiwalled carbon nanotubes into a few-layer graphene-nanotube composite. This enabled us to measure energy resolved tunneling conductance maps on the nanotubes, which shed light on the level of doping and the dependence of defect creation or functionalization on crystallographic orientation.

Original languageEnglish
Pages (from-to)3229-3235
Number of pages7
JournalJournal of Physical Chemistry C
Issue number8
Publication statusPublished - Mar 3 2011

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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