B. Lenoir et al., EFFECT OF ANTIMONY CONTENT ON THE THERMOELECTRIC FIGURE OF MERIT OF BI1-XSBX ALLOYS, Journal of physics and chemistry of solids, 59(1), 1998, pp. 129-134
The electrical resistivity, thermoelectric power and thermal conductiv
ity have been measured between 4.2 and 300 K on three Bi1-xSbx alloys
of different composition (x = 0.144, 0.165 and 0.181) prepared by the
travelling heater method. The temperature dependences of these paramet
ers follow the same general trends as those of semiconducting alloys h
aving lower Sb contents. The antimony dependence of the figure of meri
t for semiconducting alloys has been determined for various temperatur
es. The dependence presents two maxima for Sb contents of x approximat
e to 0.09 and 0.16 around 80 K. These features have been qualitatively
explained from the band structure and interband hole Scattering mecha
nisms. (C) 1997 Elsevier Science Ltd. All rights reserved.