High performance p-type thermoelectric materials and methods of preparation
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United States of America Patent
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Sep 13, 2005
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Oct 1, 2002
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Mar 18, 1997
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Abstract
The present invention is embodied in high performance p-type thermoelectric materials having enhanced thermoelectric properties and the methods of preparing such materials. In one aspect of the invention, p-type semiconductors of formula Zn4-xAxSb3-yBy wherein 0≦x≦4, A is a transition metal, B is a pnicogen, and 0≦y≦3 are formed for use in manufacturing thermoelectric devices with substantially enhanced operating characteristics and improved efficiency. Two methods of preparing p-type Zn4Sb3 and related alloys of the present invention include a crystal growth method and a powder metallurgy method.
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