Method for making a low work function electrode

Details Method for making a low work function electrode Method for making a low work function electrode

1997-10-22

2000-08-15

Meeks, Timothy

Coating processes

Electrical product produced

Electron emissive or suppressive

427 78, 4271262, 427226, 4273722, 4274198, 4272556, 204290R, C25B 1104

Patent

active

061032980

ABSTRACT:
Methods for making low work function electrodes either made from or coated with an electride material in which the electride material has lattice defect sites are described. Lattice defect sites are regions of the crystal structure where irregularities and deformations occur. Also provided are methods for making electrodes which consist of a substrate coated with a layer of a compound comprised of a cation complexed by an electride former, in which said complex has lattice defect sites. In addition, methods for making electrodes which consist of a bulk metal coated with a layer of an electride former having lattice defect sites are described. The electride former stabilizes the loss of electrons by surface sites on the metal, lowering the work-function of the coated surface.

REFERENCES:
patent: 4484989 (1984-11-01), Mansell
patent: 5128587 (1992-07-01), Skotheim et al.
patent: 5675972 (1997-10-01), Edelson
patent: 5810980 (1998-09-01), Edelson
patent: 5874039 (1999-02-01), Edelson

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