Samples of Sb2-xBixTe3, where x was between 0.43 and 0.51, were prepared by using powder metallurgy methods. A shift in the maximum of the thermo-electric figure-of-merit was found as a function of the particle size. This shift was attributed to the presence of point defects, and their interaction.

J.Navrátil, Z.Starý, T.Plechácek: Materials Research Bulletin, 1996, 31[12], 1559-66