| 摘要 |
The present invention realizes 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. The present invention provides an R-T-M-X-N thermoelectric conversion material that has a structure expressed by the following formula: R r T t-m M m X x-n N n (0<r‰¤1, 3‰¤t-m‰¤5, 0‰¤m‰¤0.5, 10‰¤x‰¤15, 0‰¤n‰¤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. The present invention also provides a thermoelectric conversion module that includes: at least one thermoelectric conversion material having a structure expressed by the following formula: R r T t-m M m X x-n N n (0<r‰¤1, 3‰¤t-m‰¤5, 0‰¤m‰¤0.5, 10‰¤x‰¤15, 0‰¤n‰¤2); and
an electrode,
a joining member being provided between the thermoelectric conversion material and the electrode,
the joining member being a joining layer including an alloy layer made of at least one alloy selected from the group consisting of titanium alloys, nickel alloys, cobalt alloys, and iron alloys,
the electrode containing an alloy selected from the group consisting of titanium alloys, nickel alloys, cobalt alloys, and iron alloys. |
