Electron field emitters comprising particles cooled with low vol

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode

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Other Related Categories

313309, 313311, 313336, 313497, 427 77, H01J 130

Type

Patent

Status

active

Patent number

056231806

Description

ABSTRACT:
The present invention provides methods and apparatus for making enhanced field emitters by coating particulate substrates with low voltage emissive material such as defect-rich diamond. These methods permit the advantageous, low-cost combination of low voltage emission with sharp-featured geometry.

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