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S. Sumithra, Nathan J. Takas, Dinesh K. Misra, Westly M. Nolting, P.F.P. Poudeu and Kevin L. Stokes Enhancement in Thermoelectric Figure of Merit in Nanostructured Bi2Te3 with Semimetal Nanoinclusions Advanced Energy Materials 1

Version of Record online: 9 SEP 2011 | DOI: 10.1002/aenm.201100338

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Nanocomposites are fabricated by combining chemically synthesized bismuth nanoparticles with mechanically-alloyed Bi2Te3. The resulting material displays electronic transport properties consistent with energy-dependent electronic scattering from the potential barrier established at the semimetal/semiconductor interface. This general synthetic approach can be used to create nanocomposite materials with transport properties engineered for direct thermal to electrical energy conversion applications by appropriate selection of the matrix and nanoparticle inclusions.

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