| N-type bismuth telluride nanopowders were prepared by a ball milling process involving Bi, Te, and Se powders. Hydrogen reduction treatment was applied to the nanopowders to reduce remnant oxygen contents. In this study, both the as-prepared and the reduced nanopowders were consolidated by the spark plasma sintering process at 350 °C for 10 min, and then, their thermoelectric properties were investigated. |
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