Superlattice structures for use in thermoelectric devices
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United States of America Patent
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Sep 17, 2002
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N/A
app pub date -
Mar 16, 1998
filing date -
Mar 17, 1997
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Expired
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Abstract
A superlattice structure for thermoelectric power generation includes m monolayers of a first barrier material alternating with n monolayers of a second quantum well material with a pair of monolayers defining a superlattice period and each of the materials having a relatively smooth interface therebetween. Each of the quantum well layers have a thickness which is less than the thickness of the barrier layer by an amount which causes substantial confinement of conduction carriers to the quantum well layer and the alternating layers provide a superlattice structure having a figure of merit which increases with increasing temperature.
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