Low-Temperature Thermoelectric Properties of Zn4Sb3 Prepared by Hot Pressing
Zn4Sb3 was successfully produced by a hot pressing technique, and its thermoelectric properties were investigated in the temperature range from 4K to 300K. The Seebeck coefficient, electrical conductivity, thermal conductivity, and thermoelectric figure of merit showed a discontinuity in variation at 242K, indicating the α-Zn4Sb3 to β-Zn4Sb3 phase transformation. Lattice thermal conductivity was found to be dominant in the total thermal conductivity of Zn4Sb3. Therefore, it is expected that thermoelectric properties can be improved by reducing the lattice thermal conductivity inducing phonon scattering centers.
Hyung Sun Kim, Yu Bao Li and Soo Wohn Lee
I. H. Kim et al., "Low-Temperature Thermoelectric Properties of Zn4Sb3 Prepared by Hot Pressing", Materials Science Forum, Vols. 510-511, pp. 1070-1073, 2006