초록 ▼

A practical cryogenic Peltier cooler is devised by replacing one of the semiconducting elements in a conventional peltier cooler with an element comprised of bulk, or thin film superconducting material. In the preferred embodiment, a rare-earth, a barium copper oxide superconductor of the form YbaCu

A practical cryogenic Peltier cooler is devised by replacing one of the semiconducting elements in a conventional peltier cooler with an element comprised of bulk, or thin film superconducting material. In the preferred embodiment, a rare-earth, a barium copper oxide superconductor of the form YbaCu3Ox is utilized. The superconducing elements are placed in an alternating series with semiconducting elements comprised of bismuth telluride of the form Bi2Te3 (n-type). Performance may be improved in an alternative embodiment by utilizing 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.

대표청구항 ▼

A Peltier cooling stack comprising: a first electrode; a superconducting layer electrically coupled to said first electrode; a semiconducting layer electrically coupled to said superconducting layer; and a second superconducting layer electrically coupled to said semiconductor layer; and a second el

A Peltier cooling stack comprising: a first electrode; a superconducting layer electrically coupled to said first electrode; a semiconducting layer electrically coupled to said superconducting layer; and a second superconducting layer electrically coupled to said semiconductor layer; and a second electrode electrically coupled to said second superconducting layer, electrons flowing under an applied voltage from said first electrode through said first superconducting layer, semiconductor layer, second superconducting layer and second electrode, the electrical junction between said first superconducting layer and semiconductor providing Peltier cooling while the electrical junction between said semiconductor layer and said second superconducting layer providing Peltier heating, whereby a cryogenic Peltier cooling stack is provided.