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A ternary (Bi,Sb)2Te3 bulk nanostructured thermoelectric compound has been prepared by a combination of hydrothermal synthesis and hot pressing. It was found that the grain sizes of the hot-pressed bulk sample vary from tens to hundreds of nanometers, which would be favorable to enhance the scattering of both carriers and phonons, resulting in a high Seebeck coefficient with a satisfactory electrical...
Nanostructured thermoelectric Bi2Te3 powders with various morphologies were hydrothermally synthesized using different precursors and routes to give an experimental comprehension on the formation of the nanopowders. It was found that the polyhedral Bi2Te3 particles are formed by surface nucleation in a continuous nucleation process, the hexagonal Bi2Te3 thin sheets are formed in a nucleus saturation...
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