Abstract
Abstract Thermoelectric alloys of Bi 2 Te 3 Sb 2 Te 3 Sb 2 Se 3 have typically been fabricated by Bridgman growth and zone growth [1, 2]. This study showed that the method of growth does not appear to produce a significant difference in the figure of merit. However, it was found that the zone techniques can produce a higher yield of material than Bridgman techniques in both the p- and n-type material without a degradation in the high figure of merit. The maximum figure of merit for p-type alloy (Bi 2 Te 3 ) 72 (Sb 2 Te 3 ) 25 (Sb 2 Se 3 ) 3 was found to be 3.6 × 10 −3 K −1 and for the n-type (Bi 2 Te 3 ) 90 (Sb 2 Te 3 ) 5 (Sb 2 Se 3 ) 5 , 3.2 × 10 −3 K −1 [1].
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