Field emission material having an inter-layer spacing and...

Details Field emission material having an inter-layer spacing and... Field emission material having an inter-layer spacing and...

2008-04-08

2008-04-08

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

Discharge devices having an electrode of particular material

C313S309000, C313S310000, C313S351000

Reexamination Certificate

active

07355330

ABSTRACT:
Graphite comprises atoms arranged in discrete layers (100). The perpendicular distance between these layers is the ‘d-spacing’ (101). A field emission material is obtained by expanding the d-spacing (102). Such expansion may be achieved by an intercalant that has been introduced between layers of the material. Such an intercalant may reside, or may no longer reside, in the material. The material may be placed in position on a substrate by a printing process, prior to expansion. Such field emission material may be used in cold cathodes in field electron emission devices.

REFERENCES:
patent: 4265952 (1981-05-01), Caines
patent: 4971726 (1990-11-01), Maeno et al.
patent: 5733480 (1998-03-01), Lee et al.
patent: 6097139 (2000-08-01), Tuck et al.
patent: 2002/0017854 (2002-02-01), Allmen et al.
patent: 09-259737 (1997-10-01), None
patent: WO9706549 (1997-02-01), None

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