Full text loading...
Schematic of a field emission device for cooling. A sample to be cooled is in contact with the cathode which is the n-type semiconductor PbTe.
Electron energy exchange in field emission from the n-type semiconductor cathode. The energy exchange process take place between the outgoing field-emitted and the incoming replacement electrons.
Plots of exchange energy vs current. The exchange energy decreases with current since the low energy states contribute significantly only at strong fields.
Plots of cooling power vs current. A positive represents the net cooling in the large range of field emission current.
Plots of cooling power vs temperature. The net cooling is a few watts in a working range of field emission currents.
Article metrics loading...