Accession Number : AD1032532

Title :   Cryogenic Peltier Cooling

Descriptive Note : Technical Report,15 Sep 2010,14 Sep 2016

Corporate Author : The Ohio State University Columbus United States

Personal Author(s) : Heremans,Joseph

Full Text :

Report Date : 06 Apr 2017

Pagination or Media Count : 36

Abstract : 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 (BiSb:K) and the Ptype (YbPd2Pt) materials with the highest ZT's published in the temperature range. We established baseline ZT's for many other material classes usable in this range (the tetradymites and in particular Bi2Te2Se:Sn, 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.

Descriptors :   Thermoelectric cooling , heat transfer , Thermodynamic properties , nanotechnology , electrical conductivity , thermal conductivity , thermoelectricity , nanoparticles , transport properties , Cryogenics , nanostructures , nanocomposites , band structures , band gaps

Subject Categories : Air Condition, Heating, Lighting & Ventilating
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE