Abstract
AgInSe2 nanopowders with a chalcopyrite structure and an average particle size of ~75 nm were synthesized from solutions by the polyol method of chemical synthesis. Spark plasma sintering was used to obtain bulk polycrystalline nanomaterials with an average grain size of ~110 nm. Electrons are the main current carriers in bulk materials. In the range 300–700 K, the features of the temperature dependences of the electrical resistivity, Seebeck coefficient, and total thermal conductivity of the nanomaterials are determined. It was found that the maximum thermoelectric figure of merit, equal to 0.1, is achieved at a temperature of 700 K.
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This study was supported by the Ministry of Education and Science of the Russian Federation (project no. 0625-2020-0015).
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Vasiliev, A.E., Ivanov, O.N., Zhezhu, M.V. et al. Synthesis and Properties of Thermoelectric Nanomaterial AgInSe2 with a Chalcopyrite Structure. Nanotechnol Russia 16, 357–362 (2021). https://doi.org/10.1134/S2635167621030198
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DOI: https://doi.org/10.1134/S2635167621030198