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[Bi2Te3]x[Sb2Te3]y superlattices have been shown to have decreased thermal conductivities as compared to bulk alloys, resulting in enhanced thermoelectric efficiency. A key to the preparation of these kinetically stable superlattices has been the use of low temperature epitaxial growth techniques. We are exploring the use of modulated elemental reactants to(More)
Superlattices based on the thermoelectric standard compounds Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ demonstrate enhanced ZT values. The formation of the superlattice (Bi/sub 2/Te/sub 3/)/sub x/(Sb/sub 2/Te/sub 3/)/sub y/ through the modulated elemental reactants (MER) approach is hindered by interdiffusion of the Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/(More)
(Sb/sub 2/Te/sub 3/)/sub x/(TiTe/sub 2/) superlattices with varying values of x and fixed y were prepared using modulated elemental reactants. A procedure to calibrate the ratio of the elements and the absolute amount deposited is discussed. The structure of a reactant designed to form a (Sb/sub 2/Te/sub 3/)/sub 3/(TiTe/sub 2/)/sub 3/ superlattice is(More)
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