US Patent No: 6,458,319
Number of patents in Portfolio can not be more than 2000
High performance P-type thermoelectric materials and methods of preparation
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Oct 1, 2002
Issued date -
Mar 18, 1997
filing date -
08/820,019
serial no -
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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 Zn.sub.4-x A.sub.x Sb.sub.3-y B.sub.y wherein 0.ltoreq.x.ltoreq.4, A is a transition metal, B is a pnicogen, and 0.ltoreq.y.ltoreq.3 are formed for use in manufacturing thermoelectric devices with substantially enhanced operating characteristics and improved efficiency. Two methods of preparing p-type Zn.sub.4 Sb.sub.3 and related alloys of the present invention include a crystal growth method and a powder metallurgy method.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,902,648 Process for producing a thermoelectric module | 17 | 1989 | |
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| 5,356,485 Intermetallic thermocouples | 10 | 1992 | |
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| 5,885,345 Method of fabricating shaped crystals by overhead-pressure liquid injection | 4 | 1997 | |
Patent Citation Ranking
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