Dm. Rowe et al., COMMENTS ON THE THERMOELECTRIC PROPERTIES OF PRESSURE-SINTERED SI0.8GE0.2 THERMOELECTRIC ALLOYS, Journal of applied physics, 73(9), 1993, pp. 4683-4685
The recent results of C. B. Vining, W. Laskow, J. O. Hanson, R. R. Van
der Beck, and P. D. Gorsuch [J. Appl. Phys. 69, 4333 (1991)] regardin
g the effect of grain size on the thermoelectric figure of merit of he
avily doped p-type silicon germanium alloys are compared to earlier re
sults on similar materials. The data confirm that the room-temperature
figure-of-merit is significantly increased in materials with a small
grain size.