Copper-filled carbon nanotubes: Rheostatlike behavior and Femtogram copper mass transport

Dmitri Golberg*, Pedro M.F.J. Costa, Masanori Mitome, Silke Hampel, Diana Haase, Christian Mueller, Albrecht Leonhardt, Yoshio Bando

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

95 Scopus citations


The electrical probing and engineering of copper-filled amorphous-like carbon nanotubes (CNTs) inside a 300 kV high-resolution TEM was studied. The copper-filled nanotubes were synthesized by pyrolysis of copper(II)- acetylacetonate at low-pressure conditions. The existence of tiny metal particles inside the tubes was also documented. The whole process was carried out inside a JEM-3100FEF field-emission high-resolution transmission electron microscope using a Nanofactory Instruments piezo-driven STM-TEM stage. High-precision nanowelding of contacting Cu-filled nanotubes was achieved inside the TEM. The Cu mass flow rate was estimated to be as fast as ca. 0.5 fgs -1 according to real-time TEM video recording.

Original languageEnglish (US)
Pages (from-to)1937-1942
Number of pages6
JournalAdvanced Materials
Issue number15
StatePublished - Aug 3 2007
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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