Low work function cathode

Details Low work function cathode Low work function cathode

H - Electricity

01

J

H01J 1/02 (2006.01) H01J 1/05 (2006.01) H01J 1/14 (2006.01)

Patent

CA 2606368

Field emission properties may also be improved by coating the carbon materials with metal oxides. These metal oxides contribute to lowering the work function of the carbon material as well as improve the life of the field emission properties of the carbon materials, especially under high current density operation.

La présente invention se rapporte à un dispositif à émission de champ, dont les propriétés d'émission de champ peuvent être améliorées par le revêtement des matières carbonées par des oxydes métalliques. Lesdits oxydes métalliques contribuent à réduire le travail de sortie de la matière carbonée, et à améliorer la durée des propriétés d'émission de champ des matières carbonées, en particulier lors d'un fonctionnement à haute densité de courant.

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