Cryogenic Peltier Cooling

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.

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Document Details

Document Type
Technical Report
Publication Date
Apr 06, 2017
Accession Number
AD1032532

Entities

People

  • Joseph P. Heremans

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Band Structures
  • Chemistry
  • Crystal Structure
  • Crystals
  • Electrical Conductivity
  • Energy Bands
  • Heat Energy
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Nanoparticles
  • Nanotechnology
  • Solid State Physics
  • Thermal Conductivity
  • Thermoelectricity
  • Transport Properties

Fields of Study

  • Materials science

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Solar Photovoltaics and Thermoelectric Devices.
  • Theoretical Analysis.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene