Mass transportation mechanism in electric-biased carbon nanotubes

Jiong Zhao, Jia Qi Huang, Fei Wei, Jing Zhu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

57 Citations (Scopus)


The mass transportation mechanism in electric-biased carbon nanotubes (CNTs) is investigated experimentally. Except for the widely accepted electromigration mechanism, we find out the thermal effect can also induce the mass transportation in the form of thermomigration or thermal evaporation. Moreover, the convincing in situ transmission electron microscope experiment results show the thermal gradient force overrides the electromigration force in most conditions, according to specific parameters of the CNTs and "cargos". A full analysis on the thermal gradient force and electromigration force imposed on the cargos is given, thus our experimental results are well explained and understood.
Original languageEnglish
Pages (from-to)4309-4315
Number of pages7
JournalNano Letters
Issue number11
Publication statusPublished - 10 Nov 2010
Externally publishedYes


  • Carbon nanotubes
  • electromigration
  • evaporation
  • Fe cargo
  • in situ TEM
  • thermomigration

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


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