Mechanism of field emission from carbon materials

  • A. N. Obraztsov
  • A. P. Volkov
  • I. Yu. Pavlovskii
Condensed Matter

Abstract

Field emission in diamond and graphite-like polycrystalline films is investigated experimentally. It is shown that the emission efficiency increases as the nondiamond carbon phase increases; for graphite-like films the threshold electric field is less than 1.5 V/μm, and at 4 V/μm the emission current reaches 1 mA/cm2, while the density of emission centers exceeds 106 cm−2. A general mechanism explaining the phenomenon of electron field emission from materials containing graphite-like carbon is proposed.

PACS numbers

79.70.+q 81.05.Tp 

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Copyright information

© MAIK "Nauka/Interperiodica" 1998

Authors and Affiliations

  • A. N. Obraztsov
    • 1
  • A. P. Volkov
    • 1
  • I. Yu. Pavlovskii
    • 1
  1. 1.M. V. Lomonosov Moscow State UniversityMoscowRussia

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