Electron-emitting material, manufacturing method therefor...

Details Electron-emitting material, manufacturing method therefor... Electron-emitting material, manufacturing method therefor...

2005-02-02

2010-06-15

Michener, Jennifer (Department: 1795)

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

C427S113000

Reexamination Certificate

active

07736542

ABSTRACT:
In the present invention an electron-emitting material is provided wherein the field emission initiation voltage or work function is smaller than that of conventional materials. That is, the present invention relates to an electron-emitting sheet material which is a material comprising a substrate102and a graphite sheet101laminated on the top of the substrate102, wherein (1) the graphite sheet101has a layered structure of layers of graphenes consisting of a plurality of carbon hexagonal networks, (2) the graphenes are layered relative to one another so that the c-axial direction of each graphene is substantially perpendicular to the plane of the substrate102, (3) the graphite sheet101is laminated on top of the substrate102so that the c-axial direction of each graphene is substantially perpendicular to the plane of the substrate102, and (4) the graphite sheet101comprises an element other than carbon as a second element.

REFERENCES:
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patent: 4-37530 (1992-06-01), None
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patent: 2000-178016 (2000-06-01), None
patent: 2004-119263 (2004-04-01), None

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