| US 7,521,629 B2 | ||
| Thermoelectric transportation material containing nitrogen | ||
| Shigeo Yamaguchi, Ibaraki (Japan); Yasuo Iwamura, Ibaraki (Japan); and Atsushi Yamamoto, Ibaraki (Japan) | ||
| Assigned to National Institute of Advanced Industrial Science and Technology, Tokyo (Japan) | ||
| Appl. No. 10/522,573 PCT Filed Jul. 25, 2003, PCT No. PCT/JP03/09491 § 371(c)(1), (2), (4) Date Jan. 28, 2005, PCT Pub. No. WO2004/012276, PCT Pub. Date Feb. 05, 2004. |
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| Claims priority of application No. 2002-219288 (JP), filed on Jul. 29, 2002; and application No. 2002-272054 (JP), filed on Aug. 18, 2002. | ||
| Prior Publication US 2006/0037637 A1, Feb. 23, 2006 | ||
| Int. Cl. H01L 35/12 (2006.01); C01G 15/00 (2006.01) | ||
| U.S. Cl. 136—236.1 [136/238; 423/593.1] | 6 Claims |
| 1. An oxynitride thermoelectric material, which has an element composition represented by the following formula (A):
AlzGayInxMuRvOsNt (A)
wherein M represents a transition element; R represents a rare earth element; 0≤z≤0.7, 0.1≤y≤0.3, 0.2≤x≤0.9, 0≤u≤0.7, 0≤v≤0.05,
0.9≤s+t≤1.7 so that the element composition is an oxynitride, and 0.4≤s≤1.2; and x+y+z=1, and
has an absolute value of a Seebeck coefficient of 40 μV/K or more at a temperature of 100° C. or more.
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