H - Electricity – 01 – L
Patent
H - Electricity
01
L
327/3
H01L 35/22 (2006.01) H01L 35/18 (2006.01)
Patent
CA 1323669
ABSTRACT A practical cryogenic Peltier cooler (22) is devised by replacing one of the semiconducting elements in a con- ventional Peltier cooler with an element comprised of bulk, or thin film superconducting material. In the pre- ferred embodiment, a rare-earth, a barium copper oxide superconductor (78) of the form Ybacu3Ox is utilized. The superconducting elements (78) are placed in an alternating series with semiconducting elements (72) comprised of bismuth telluride of the form Bi2Te3 (n-type). Perform- ance may be improved in an alternative embodiment by util- izing instead a bismuth antimony semiconductor of the form Bi85Sb15 (n-type). As a result, cryogenic Peltier coolers can be devised with useful refrigeration capacities and stable cold temperatures of 65-80 degrees Kelvin and below, while heat sinked to a higher temperature.
603936
Hughes Aircraft Company
Sim & Mcburney
Skertic Matthew M.
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