Thermoelectric conversion material and method of producing the same
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United States of America Patent
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Feb 21, 2006
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N/A
app pub date -
Mar 10, 2000
filing date -
Mar 10, 1999
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Abstract
A thermoelectric conversion material is formed of a polycrystal structure of crystal grains composed of a silicon-rich phase, and an added element-rich phase in which at least one type of added element is deposited at the grain boundary thereof, the result of which is an extremely large Seebeck coefficient and low thermal conductivity, allowing the thermoelectric conversion rate to be raised dramatically, and affording a silicon-based thermoelectric conversion material composed chiefly of silicon, which is an abundant resource, and which causes extremely low environmental pollution.
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