The Seebeck coefficient and conductivity of Hg1-xCd xSe is calculated for 0<x<0.5, at temperatures below 400 K, and donor concentration between 1016 and 1018 cm -3. These transport coefficients are obtained by solving the Boltzman equation including carriers scattering with optical and acoustic phonons, ionized impurities, and alloy potential. The thermoelectric figure of merit is calculated using these coefficients and measured values of the thermal conductivity. In spite of the very low thermal conductivity of this material (≊10 mW/cm K) the thermoelectric figure of merit times temperature is lower than 0.3 at 300 K, and decreases monotonically with decreasing temperature.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)