Furukawa Co., Ltd.

Huiyuan Geng

Satoru Ito

Takahiro Ochi

Junqing Guo

Shogo Suzuki

Masaaki Kikuchi

Shunichi Ochi

A thermoelectric conversion material having excellent thermoelectric performance over a wide temperature range, and a thermoelectric conversion module providing excellent junctions between thermoelectric conversion materials and electrodes. An R-T-M-X-N thermoelectric conversion material has a structure expressed by the following formula: RTMXN(0&#x2264;r&#x2264;1, 3&#x2264;t&#x2212;m&#x2264;5, 0&#x2264;m&#x2264;0.5, 10&#x2264;x&#x2264;15, 0&#x2264;n&#x2264;2), where R represents three or more elements selected from the group consisting of rare earth elements, alkali metal elements, alkaline-earth metal elements, group 4 elements, and group 13 elements, T represents at least one element selected from Fe and Co, M represents at least one element selected from the group consisting of Ru, Os, Rh, Ir, Ni, Pd, Pt, Cu, Ag, and Au, X represents at least one element selected from the group consisting of P, As, Sb, and Bi, and N represents at least one element selected from Se and Te.

Thermoelectric conversion material and thermoelectric conversion module

A thermal stress of electrode members (to) due to an operation temperature may be relaxed by thermal stress relaxation layers (to), and thus peeling of the electrode members (to) due to thermal stress at the operation temperature may be prevented in a satisfactory manner. Furthermore, diffusion of a constituent component of the thermoelectric conversion members (and) due to the operation temperature and the like may be prevented by diffusion prevention layers (to), and thus durability and stability of the thermoelectric conversion module () may be improved.

Thermoelectric conversion module

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Tsukuba, Japan

Huiyuan Geng