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Operation of a gated field emitter using an individual carbon nanofiber cathode

  • M. A. Guillorn
  • , A. V. Melechko
  • , V. I. Merkulov
  • , E. D. Ellis
  • , C. L. Britton
  • , M. L. Simpson
  • , D. H. Lowndes
  • , L. R. Baylor

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

We report on the operation of an integrated gated cathode device using a single vertically aligned carbon nanofiber as the field emission element. This device is capable of operation in a moderate vacuum for extended periods of time without experiencing a degradation of performance. Less than 1% of the total emitted current is collected by the gate electrode, indicating that the emitted electron beam is highly collimated. As a consequence, this device is ideal for applications that require well-focused electron emission from a microscale structure.

Original languageEnglish
Pages (from-to)3506-3508
Number of pages3
JournalApplied Physics Letters
Volume79
Issue number21
DOIs
StatePublished - Nov 19 2001

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