Patent ID: 7202596
Filing Date: 2007-04-10
Classification: H01J

Abstract:
1. An electron emitter for use in a field emission device comprising: a conductive electrode; a plurality of fibrous clusters; and an adhesion layer adhering the plurality of fibrous clusters to the conductive electrode, wherein the adhesion layer is formed during processing of a catalyst precursor and the composition of the catalyst precursor comprises a catalyst compound, a solvent and a plurality of non-catalytic particles, the composition of the catalyst precursor being selected and processed such that particulates of the catalyst compound agglomerate on the non-catalytic particles and form catalytic particulate clusters adhered to the conductive electrode by the adhesion layer, wherein the plurality of fibrous clusters are formed in situ by catalytic growth from the catalytic particulate clusters such that each of the plurality of fibrous clusters comprises a plurality of nanofibers adhered to the conductive electrode by the adhesion layer, and at least a portion of the plurality of fibrous clusters have a hemispheroidal shape.