Cryogenic Peltier Cooling
Technical Report,15 Sep 2010,14 Sep 2016
The Ohio State University Columbus United States
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This MURI aimed to improve efficiency and temperature range in thermoelectric TE Peltier cooling by improving the materials figure of merit, or ZT. We established both the Ntype BiSbK and the Ptype YbPd2Pt materials with the highest ZTs published in the temperature range. We established baseline ZTs for many other material classes usable in this range the tetradymites and in particular Bi2Te2SeSn, which we then used to develop topological insulators. New heavy Fermion materials emerged CeAl2. FeSb3 performance was ascribed to phonon drag, and is unsuitable for cooling. New areas of research emerged in TE properties of Bibased nanowires.
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