Electron emissive film

Electric lamp and discharge devices – Discharge devices having a multipointed or serrated edge...

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313336, 313346R, 313351, 313495, H01J 102, H01J 116, H01J 1910, H01J 6304

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active

060877650

ABSTRACT:
An electron-emissive film (170, 730) is made from graphite and has a surface defining a plurality of emissive clusters (100), which are uniformly distributed over the surface. Each of the emissive clusters (100) has dendrites (110) extending radially from a central point (120). Each of the dendrites (110) has a ridge (130), which has a radius of curvature of less than 10 nm. The graphene sheets (160) that form the dendrites (110) have a (002) lattice spacing within a range of 0.342-0.350 nanometers.

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"A Carbon Nanotube Field-Emissiion Electron Source" by Walt A. de Heer, A. Chatelain, D. Ugarte; Science, vol. 270, Nov. 17, 1995, pp. 1179-1180.
"Unraveling Nanotubes: Field Emission from an Atomic Wire" by A.G. Rinzler, et al; Science, vol. 269, Sep. 15, 1995, pp. 1550-1553.

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