P-type skutterudite material and preparation method thereof

A skutterudite and p-type technology, which is applied in the direction of thermoelectric device node lead-out materials, thermoelectric device manufacturing/processing, etc., can solve the problems of material electrical transmission performance deterioration, uniform dispersion of nanoparticles, lack of multi-filling materials, etc. Achieve the effects of theoretical thermoelectric conversion efficiency improvement, power factor improvement, and industrialization prospects
CN102373348AActive Publication Date: 2012-03-14SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Publication Date
2012-03-14

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Abstract

The invention relates to a p-type skutterudite material and a preparation method thereof. The invention provides the p-type skutterudite material which has a chemical formula as represented by IyFe4-xMxSb12 / z(phi), wherein, I is one kind or more kinds of filling atoms in a skutterudite phase, the filling amount y of the filling atoms is no less than 0.01 and no more than 1, M is one kind or more kinds of dopant atoms, the dopant amount x of the dopant atoms is no less than 0 and less than 4, phi is one kind or more kinds of second phases, the molar ratio z of phi is no less than 0 and no morethan 0.5, and second phase sediment disperses in the skutterudite phase. The invention also provides the preparation method for the p-type skutterudite material.
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Description

technical field

[0001] The invention belongs to the field of p-type skutterudite materials, and provides a p-type skutterudite material with high thermoelectric performance and a preparation method thereof. Background technique

[0002] Thermoelectric conversion technology is a technology that uses the Seebeck effect of materials to directly convert heat energy into electrical energy, or uses the Peltier effect of materials for refrigeration. This technology has no moving parts, high reliability, and long life. It can be widely used in waste heat power generation, aerospace power supply, medical and sanitary refrigeration, household refrigeration appliances and other fields. The thermoelectric conversion efficiency mainly depends on the dimensionless thermoelectric performance factor ZT of the material (ZT=S 2 σT / κ, where S is the Seebeck coefficient, σ is the electrical conductivity, κ is the thermal conductivity, and T is the absolute temperature). The higher the ZT valu...

Claims

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