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The environmental stability of field emission from single-walled carbon nanotubes

Appl. Phys. Lett. 75, 3017 (1999); doi:10.1063/1.125219

Issue Date: 8 November 1999

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Kenneth A. Dean and Babu R. Chalamala
Motorola Inc., Flat Panel Display Division, 7700 South River Parkway, Tempe, Arizona 85284
We demonstrate long-term field emission stability from single-walled carbon nanotubes. Unballasted nanotubes operate without degradation for over 350 h at 10–9 Torr. Nanotubes are shown to be significantly less sensitive to operating environments than metallic emitters. In 10–7 Torr of H2O, we demonstrate 100 h of continuous bias field emission with no current degradation. Protrusion growth and current runaway, typical problems for unballasted metal emitters, are not observed with nanotubes. Single-walled nanotubes do show susceptibility to damage by oxidation. We suggest that the exceptional environmental stability of carbon nanotubes is due to a combination of geometry, strong carbon bonding, and the lack of protrusion growth. ©1999 American Institute of Physics.
History: Received 14 May 1999; accepted 10 September 1999
Permalink: http://link.aip.org/link/?APPLAB/75/3017/1
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KEYWORDS and PACS

Keywords
PACS
  • 79.70.+q
    Electron and ion emission by liquids and solids; impact phenomena Field emission, ionization, evaporation, and desorption
  • YEAR: 1999

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
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REFERENCES (20)
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