Impact of Lu-Substitution in Yb14–xLuxZnSb11: Thermoelectric Properties and Oxidation Studies
Andrew P. Justl,
Logan D. Winston,
Sabah K. Bux
et al.
Abstract:Yb 14 ZnSb 11 is one of the newest additions to the high-performance Yb 14 MSb 11 (M = Mn, Mg, and Zn) family of ptype high-temperature thermoelectric materials and shows promise for forming passivating oxide coatings. Work on the oxidation of rare earth (RE)-substituted Yb 14−x RE x MnSb 11 single crystals suggested that substituting late RE elements may form more stable passivation oxide coatings. Yb 14−x Lu x ZnSb 11 (x = 0.1, 0.2, 0.3, 0.4, 0.5, and 0.7) samples were synthesized, and Lu-substitution's effe… Show more
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