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US 6,214,651 B1Granted
Doped diamond for vacuum diode heat pumps and vacuum diode thermionic generators
AssigneeBorealis Technical Limited
InventorIsaiah Watas Cox
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Abstract
A novel use of doped carbonaceous material is disclosed, integral to the operation of Vacuum Diode Heat Pumps and Vacuum Diode Thermionic Generators. In the preferred embodiment, the use of nitrogen-doped diamond enhances the operation of Vacuum Diode Heat Pumps and Vacuum Diode Thermionic Generators.
Claims20
A method for making a vacuum diode comprising:
- providing a collector;
- and
- providing an emitter, wherein at least one of said collector or said emitter comprises a doped carbonaceous material to reduce a threshold voltage for the emission of electrons from said at least once of said collector or said emitter.
A method for using a vacuum diode comprising:
- providing a vacuum diode comprising an emitter and a collector, wherein at least one of said emitter or said collector comprises a doped carbonaceous material;
- thermally coupling a collector in said vacuum diode to a mass to be heated;
- thermally coupling an emitter in said vacuum diode to a mass to be cooled;
- and
- causing a current to flow from said emitter to said collector.
2 more elements
A method for reducing the threshold voltage for the emission of electrons in an electrode, said method comprising the steps of:
- doping a carbonaceous material;
- and
- providing an electrode comprising a collector thermally coupled to a mass to be heated or an emitter thermally coupled to a mass to be cooled, wherein said electrode comprises said doped carbonaceous material, wherein a threshold voltage for the emission of electrons in said electrode is reduced.
Dependencies are inferred from the claim text.