Cold Field Emission from Cvd Diamond Films Observed in Emission Electron Microscopy

C. Wang, A. Garcia, D. C. Ingram, M. E. Kordesch, M. Lake

Research output: Contribution to journalArticlepeer-review

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Abstract

Thick (100µ) chemical vapour deposited (CVD) polycrystalline diamond films have been observed to emit electrons with an intensity sufficient to form an image in the accelerating field of an emission microscope without external excitation (= 3 MV/m). The individual crystallites are of the order of 1-10µ. The combined crystallite diameter and the electric field strength in these ‘self-emitting’ films are far below those typical for cold field emitters.

Original languageEnglish
Pages (from-to)1459-1461
Number of pages3
JournalElectronics Letters
Volume27
Issue number16
DOIs
StatePublished - 1 Feb 1991
Externally publishedYes

Keywords

  • Electron microscopy
  • Thick-film devices

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