Electron holography of field-emitting carbon nanotubes

John Cumings, A. Zettl, Martha McCartney, John Spence

Research output: Contribution to journalArticlepeer-review

138 Scopus citations


The magnitude and spatial distribution of the electric field surrounding individual field-emitting carbon nanotubes was determined using electron holography performed in situ inside a high resolution transmission electron microscope. It was found that the electric field and the associated field emission current was concentrated precisely at the tips of the nanotubes and not at other nanotube defects. Observations showed that the electric field magnitude and distribution were stable in time, even in cases where the nanotube field emission current exhibited extensive temporal fluctuations.

Original languageEnglish (US)
Article number056804
Pages (from-to)568041-568044
Number of pages4
JournalPhysical Review Letters
Issue number5
StatePublished - Feb 4 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Electron holography of field-emitting carbon nanotubes'. Together they form a unique fingerprint.

Cite this