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US 8,802,963 B2Granted
Thermoelectric conversion material
AssigneeHitachi, Ltd.
InventorsTadashi Fujieda, Takashi Naito, Takuya Aoyagi
Life of this patent
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Abstract
A thermoelectric conversion material is provided, in which only a desired crystal is selectively precipitated. An MxV2O5 crystal is selectively precipitated in vanadium-based glass, wherein M is one metal element selected from the group consisting of iron, arsenic, antimony, bismuth, tungsten, molybdenum, manganese, nickel, copper, silver, an alkali metal and an alkaline earth metal, and 0<x<1.
Claims17
A thermoelectric conversion material comprising:
- semiconductor glass comprising vanadium,
- wherein at least a part of the semiconductor glass is crystallized, and
- wherein only MxV2O5 crystal precipitated in the semiconductor glass, where M is one metal element selected from the group consisting of iron, arsenic, antimony, bismuth, tungsten, molybdenum, manganese, nickel, copper, silver, an alkali metal and an alkaline earth metal, and 0<x<1.
A P-type thermoelectric conversion material comprising:
- semiconductor glass comprising vanadium,
- wherein at least a part of the semiconductor glass is crystallized,
- wherein only MxV2O5 crystal precipitated in the semiconductor glass, where M is one metal element selected from the group consisting of iron, arsenic, antimony, bismuth, tungsten, molybdenum, manganese, nickel, copper, silver, an alkali metal and an alkaline earth metal, and 0<x<1, and
- wherein the semiconductor glass further comprises at least one selected from the group consisting of phosphorus, iron, arsenic, antimony, bismuth, tungsten, molybdenum, manganese and nickel.
1 more element
An N-type thermoelectric conversion material comprising:
- semiconductor glass comprising vanadium,
- wherein at least a part of the semiconductor glass is crystallized,
- wherein only MxV2O5 crystal precipitated in the semiconductor glass, where M is one metal element selected from the group consisting of iron, arsenic, antimony, bismuth, tungsten, molybdenum, manganese, nickel, copper, silver, an alkali metal and an alkaline earth metal, and 0<x<1, and
- wherein the semiconductor glass further comprises at least one selected from the group consisting of phosphorus, copper, silver, an alkali metal and an alkaline earth metal.
1 more element
Dependencies are inferred from the claim text.