Field emission from <i>p</i>-type polycrystalline diamond films

Abstract

Vapor-deposited-diamond field emitters are fabricated using diamond film technology compatible with integrated circuit processing. The field emission data from p-type polycrystalline diamond films are presented. Field emission current in the range of 15 μA was detected at an electric field intensity of &amp;lt;20 MV/m at a pressure of 10−7 Torr. A current of approximately 50 nA was observed at a pressure up to 10−2 Torr in H2 environment.