THERMOELECTRIC CONVERSION MATERIAL AND THERMOELECTRIC CONVERSION MODULE

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Disclosed is a thermoelectric conversion module having high thermoelectric performance over a wide temperature range. Specifically disclosed is a thermoelectric conversion material having a structure represented by the following general formula : RrTt-mMmXx-nNn (wherein 0 < r ≤ 1, 3 ≤ t - m ≤ 5, 0 ≤ m ≤ 0.5, 10 ≤ x ≤ 15 and 0 ≤ n ≤ 2). In the general formula, 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 the group consisting of 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 the group consisting of Se and Te.