ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Details are given of the field electron emission (FEE) characteristics of a cold cathode consisting of a multi-array of tantalum carbide needles prepared from a directionally solidified eutectic. It is shown that, whilst these needles have similar dimensions, only a small fraction of these potential sources actually contribute to the total emission current. From electron spectroscopy studies it has been established that the characteristic half-width of the emission from individual areas is about ~ 260 meV and that the emission mechanism is based on a semiconductor regime. The Fowler-Nordheim (F-N) plots of the total emission from the cathode and that from small emitter areas are both linear over a wide field range.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00552065
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