Electric lamp or space discharge component or device manufacturi – Process – Electrode making
Patent
1997-03-27
1999-03-30
Ramsey, Kenneth J.
Electric lamp or space discharge component or device manufacturi
Process
Electrode making
445 58, 313311, 427 78, H01J 902
Patent
active
058881131
ABSTRACT:
A process for making a cesiated diamond film comprises (a) depositing a quantity of cesium iodide on the diamond film in a vacuum of between about 10.sup.-4 Torr and about 10.sup.-7 Torr, (b) increasing the vacuum to at least about 10.sup.-8 Torr, and (c) imposing an electron beam upon the diamond film, said electron beam having an energy sufficient to dissociate said cesium iodide and to incorporate cesium into interstices of the diamond film. The cesiated diamond film prepared according to the process has an operating voltage that is reduced by a factor of at least approximately 2.5 relative to conventional, non-cesiated diamond film field emitters.
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Anderson David F.
Kwan Simon W.
Ramsey Kenneth J.
Universities Research Association Inc.
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