Bulk Nanostructured Polycrystalline p-Bi-Sb-Te Thermoelectrics Obtained by Mechanical Activation Method with Hot Pressing
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Bulk nanostructured polycrystals are prospective thermoelectrics. Fabrication and examination of nanostructured polycrystalline p-Bi-Sb-Te are discussed. The influence of fabrication conditions and the composition of the material on sizes of nanograins was investigated experimentally. Basic physical properties of fabricated nanothermoelectrics including nanocomposites were also studied. Theoretical estimation of the influence of phonon scattering on nanograin boundaries in bulk nanostructured thermoelectrics is presented.
KeywordsThermoelectrics semiconductors nanostructures nanocomposites heat conductivity electric conductivity thermoelectric power thermoelectric figure of merit phonon scattering
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This work is supported by the Federal Agency on Science and Innovations of Russia (Contract No. 3008-03-1.3-25-02).
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