
Proceedings Paper
Introduction to cryogenic solid state coolingFormat | Member Price | Non-Member Price |
---|---|---|
$17.00 | $21.00 |
Paper Abstract
Thermoelectric (Peltier) coolers have historically not been used for cooling to temperatures
much below 200 K, because of limitations with existing thermoelectric materials. There are many
advantages to solid-state coolers: they have no moving parts, are compact, vibration-free, inherently
durable, and scalable to low power levels. A significant drawback is their low coefficient of
performance. The figure of merit, zT, is the materials characteristic that sets this efficiency in Peltier
coolers. The zT decreases rapidly with temperature, roughly following a T7/2 law. However, new
material developments have taken place in the last decade that have made it possible to reach zT>0.5
down to 50 K. Many new ideas have also been put forward that enable better ZT’s and lower
temperatures. This article reviews the difficulties associated with Peltier cooling at cryogenic
temperatures, as an introduction to the following presentations and proceeding entries that will
present solutions that have been developed since 2010.
Paper Details
Date Published: 17 May 2016
PDF: 12 pages
Proc. SPIE 9821, Tri-Technology Device Refrigeration (TTDR), 98210G (17 May 2016); doi: 10.1117/12.2228756
Published in SPIE Proceedings Vol. 9821:
Tri-Technology Device Refrigeration (TTDR)
Richard I. Epstein; Bjørn F. Andresen; Markus P. Hehlen; Ingo N. Rühlich; Mansoor Sheik-Bahae; Thomas Fraser, Editor(s)
PDF: 12 pages
Proc. SPIE 9821, Tri-Technology Device Refrigeration (TTDR), 98210G (17 May 2016); doi: 10.1117/12.2228756
Show Author Affiliations
Joseph P. Heremans, The Ohio State Univ. (United States)
Published in SPIE Proceedings Vol. 9821:
Tri-Technology Device Refrigeration (TTDR)
Richard I. Epstein; Bjørn F. Andresen; Markus P. Hehlen; Ingo N. Rühlich; Mansoor Sheik-Bahae; Thomas Fraser, Editor(s)
© SPIE. Terms of Use
