Batteries: thermoelectric and photoelectric – Thermoelectric – Thermopile
Patent
1997-07-16
1999-07-13
Gorgos, Kathryn
Batteries: thermoelectric and photoelectric
Thermoelectric
Thermopile
136227, 136239, 136240, 252 623T, H01L 3528, H01L 3514, H01L 3520, C04B 3500
Patent
active
059229888
ABSTRACT:
A thermoelectric material which exhibits an excellent thermoelectric performance even when it is used at elevated temperatures is shown and described. A thermoelectric material is provided having conductive layers made of a first semiconductor only, and barrier layers made of a second semiconductor only, that are alternatingly formed one upon the other. The interface of the barrier layer relative to the conductive layer is roughly formed to include a plurality of protuberances and a plurality of recesses, and the interface of the conductive layer relative to the barrier layer is roughly formed to fit the interface of the barrier layer. The ratio Ry/t of the maximum height Ry of the protuberance on the barrier layer to the thickness t of the barrier layer is set to be Ry/t.gtoreq.0.1. This makes it possible to enhance the strength of the heterojunction interface between the barrier layer and the conductive layer and to improve the heat resistance.
REFERENCES:
patent: 5436467 (1995-07-01), Elsner et al.
Gorgos Kathryn
Honda Giken Kogyo Kabushiki Kaisha
Parsons Thomas H.
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