Abstract
Nanocrystalline Bi0.85Sb0.15 powders were prepared by a novel mechanical alloying method. The bulk samples were formed by applying a pressure of 6 GPa at different pressing temperatures and times. Electrical conductivity, Seebeck coefficients, and thermal conductivity were measured in the temperature range 80–300 K. The Seebeck coefficient reaches a maximum value of −173 µV/K at 150 K. The largest figure of merit, 3.46 × 10−3 K−1, achieved in this experiment is 50% higher than that of its single-crystal counterpart at 200 K.
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Liu, H.J., Li, L.F. & Shi, D. High-pressure preparation and thermoelectric properties of Bi0.85Sb0.15 . J. Electron. Mater. 35, L7–L10 (2006). https://doi.org/10.1007/s11664-006-0155-4
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DOI: https://doi.org/10.1007/s11664-006-0155-4