Open AccessТеплопроводность и термоэдс соединений системы Cu-Ge-As-Se
Author(s) -
О.П. Щетников,
Н.В. Мельникова,
А. Н. Бабушкин,
В.М. Кисеев
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.01.50271.156-20
Subject(s) - thermal conductivity , copper , materials science , figure of merit , thermoelectric effect , seebeck coefficient , thermoelectric materials , condensed matter physics , electrical resistivity and conductivity , anomaly (physics) , thermodynamics , heat transfer , metallurgy , composite material , physics , optoelectronics , quantum mechanics
The effect of temperatures (300 - 400 K) and concentrations on electrical conductivity, thermoelectric power, and thermal conductivity of crystalline materials based on copper chalcogenides with the general formula (GeSe)1-x (CuAsSe2)x is analyzed. The mechanisms of heat transfer are determined. The non-monotonicity of the temperature dependence of the thermal conductivity with an anomaly at 358 K. The thermoelectric figure of merit ZT is calculated.