Emission Characteristics of Graphite Nanofiber Field Emitter for FED

Emission Characteristics of Graphite Nanofiber Field Emitter for FED

Field emission characteristics of a graphite nanofiber (GNF) emitter used in FED were examined using a scanning Faraday cup emission profiler. The current density of emitted electrons changed considerably over the emitting area at a low field, as high as two orders in intensity in a measuring emitte...

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Bibliographische Detailangaben
Hauptverfasser: Ushirozawa, Mizumoto, Hagiwara, Kei, Yamamoto, Toshihiro, Yokoo, Kuniyoshi
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Anodes
Area measurement
Carbon dioxide
Current density
Current measurement
Density measurement
Electric variables measurement
Electron emission
Glass
Voltage
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Beschreibung
Zusammenfassung:Field emission characteristics of a graphite nanofiber (GNF) emitter used in FED were examined using a scanning Faraday cup emission profiler. The current density of emitted electrons changed considerably over the emitting area at a low field, as high as two orders in intensity in a measuring emitter area of 1 mm 2 . However, uniformity was significantly improved due to current saturation at a high field. This paper discusses the current saturation in field emission of GNF from the space-charge effect of emitted electrons
ISSN:1093-2941
DOI:10.1109/DEIV.2006.357439