Abstract
The thermoelectric properties of n-type and p-type bismuth telluride between 150 and 300° K have been measured and the figure of merit for thermoelectric applications has been calculated. This figure of merit has been shown to be highest for material with an electrical conductivity of about 1000 Ω-1 cm-1 with current flow parallel to the cleavage planes. Its value at 290° K corresponds to a maximum cooling by means of the Peltier effect of about 65° C, and an efficiency of thermoelectric generation of 1% for a 25° C temperature difference.
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