THERMOELECTRIC CONVERSION MATERIAL, THERMOELECTRIC CONVERSION ELEMENT, THERMOELECTRIC CONVERSION MODULE, THERMOELECTRIC POWER GENERATION DEVICE, THERMOELECTRIC CONVERSION SYSTEM, AND MANUFACTURING METHOD OF THERMOELECTRIC CONVERSION MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a thermoelectric conversion material superior in thermoelectric conversion performance.SOLUTION: A thermoelectric conversion material 10 comprises: plural kinds of phases including first phase 20 and a second phase 30, and differing from each other in element composition. The first phase 20 and the second phase 30 each have a skutterudite structure. In the thermoelectric conversion material 10, the contents of the first phase 20 and second phase 30 are each no less than 10%, preferably no less than 20% on a volume basis. The thermoelectric conversion material 10 may further comprise at least one phase different in element composition in addition to the first phase 20 and the second phase 30. The at least one phase has a skutterudite structure.SELECTED DRAWING: Figure 1