Experimental and theoretical study of the thermoelectric properties of copper selenide
Experimental and theoretical study of temperature dependences of heat capacity, thermal conductivity, coefficient of thermal expansion and transport coefficients (electrical conductivity and thermopower) of copper selenide were carried out in temperature range 300-873 K. The results of calculations correlate with experimental data up to ~ 773 K. The maximum value of thermoelectric efficiency of nanostructured copper selenide is ZT ~ 1.8. The correlation of ZT and thermal conductivity were demonstrated within investigated range of temperatures.