Electron emission from films of carbon nanotubes and ta-C coated nanotubes

Electron emission from films of carbon nanotubes and ta-C coated nanotubes

The field emission properties of multiwall carbon nanotube films with and without a coating of tetrahedrally bonded amorphous carbon (ta-C) were investigated. Voltage thresholds of 2.4 V/μm for uncoated films and 1.5 V/μm for ta-C coated films were found. The results for the uncoated films are in go...

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Veröffentlicht in:Applied Physics Letters 1999-10, Vol.75 (17), p.2680-2682
Hauptverfasser: Dimitrijevic, S., Withers, J. C., Mammana, V. P., Monteiro, O. R., Ager, J. W., Brown, I. G.
Format: Artikel
Sprache:eng
Schlagworte:
AMORPHOUS STATE
CARBON
ELECTRON EMISSION
FIELD EMISSION
MATERIALS SCIENCE
PHYSICS
THIN FILMS
TUBES
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Zusammenfassung:The field emission properties of multiwall carbon nanotube films with and without a coating of tetrahedrally bonded amorphous carbon (ta-C) were investigated. Voltage thresholds of 2.4 V/μm for uncoated films and 1.5 V/μm for ta-C coated films were found. The results for the uncoated films are in good agreement with previous measurements of field emission from carbon nanotubes. The effect of the ta-C coating on the emission properties is discussed in light of current field emission models.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.125122