Electron emission from solids (II): Applications

Certain solids emit electrons from their surfaces when subjected to heat (thermionic emission), electromagnetic radiation (photoemission) and/or an electric field (field emission). Much of electronics, including vacuum tubes, cathode-ray tubes in their various manifestations, and electron microscopes, depend on the emission of electrons from metals and the manipulation of these electrons to perform various tasks.
Comments on article "Electron emission from solids (II): Applications"
Name Views and CommentsDate
knejikun2 this didnt describe the inventor plz be more creative andmention wilhelm conradroentgen ok thank you 5/4/2009
dave adler good article. however, crt's usu use planar oxide cathodes, not field emitters. 3/18/2007
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