Single-electron force readout of nanoparticle electrometers attached to carbon nanotubes

Jun Zhu, Markus Brink, Paul L. McEuen

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


We introduce a new technique of probing the local potential inside a nanostructure employing Au nanoparticles as electrometers and using single-electron force microscopy to sense the charge states of the Au electrometers, which are sensitive to local potential variations. The Au nanoelectrometers are weakly coupled to a carbon nanotube through high-Impedance molecular junctions. We demonstrate the operation of the Au nanoelectrometer, determine the impedance of the molecular junctions, and measure the local potential profile in a looped nanotube.

Original languageEnglish (US)
Pages (from-to)2399-2404
Number of pages6
JournalNano letters
Issue number8
StatePublished - Aug 2008

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering


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