Beneficial influence of Ru on the thermoelectric properties of Mo<sub>3</sub>Sb<sub>7</sub> - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Applied Physics Année : 2009

Beneficial influence of Ru on the thermoelectric properties of Mo3Sb7

Résumé

Zintl phases have recently been identified as potential thermoelectric materials typified by the discovery of a high thermoelectric figure of merit in the Yb14MnSb11 compound above 1000 K. We report on the synthesis and the thermoelectric properties measurements over a wide temperature range 300–1000 K of other Zintl phases exhibiting a complex crystalline structure, namely, Mo3Sb7 and its related compounds Mo3−xRuxSb7. While the binary compound displays low figure of merit values due to its metallic nature, we show that the partial substitution of Mo by Ru significantly improves its value to reach 0.45 at 1000 K in Mo2.2Ru0.8Sb7.
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hal-03996157 , version 1 (19-02-2023)

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Christophe Candolfi, Bertrand Lenoir, Juliusz Leszczynski, Anne Dauscher, Emmanuel Guilmeau. Beneficial influence of Ru on the thermoelectric properties of Mo3Sb7. Journal of Applied Physics, 2009, 105 (8), pp.083701. ⟨10.1063/1.3097384⟩. ⟨hal-03996157⟩
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