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Thermoelectric Materials: New Approaches to an Old Problem

Mahan, Gerald, Sales, Brian, Sharp, Jeff·1997·Physics Today

Abstract

Thermoelectrics is an old field. In 1823, Thomas Seebeck discovered that a voltage drop appears across a sample that has a temperature gradient. This phenomenon provided the basis for thermocouples used for measuring temperature and for thermoelectric power generators. In 1838, Heinrich Lenz placed a drop of water on the junction of metal wires made of bismuth and antimony. Passing an electric current through the junction in one direction caused the water to freeze, and reversing the current caused the ice to quickly melt; thus thermoelectric refrigeration was demonstrated (figure 1).

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Metadata

Authors
Mahan, G., Sales, B., & Sharp, J.
Venue
Physics Today
Published
1997-03-01
Volume
50
Issue
3
Pages
42-47
ISSN
  • 0031-9228 (ISSN-L)
  • 1945-0699
OpenAlex
W2023452791
Cited by
828
References
0
FWCI
23.20
Type
journal article
Language
en
Open access
closed

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Mahan, G., Sales, B., & Sharp, J. (1997). Thermoelectric Materials: New Approaches to an Old Problem. Physics Today. https://doi.org/10.1063/1.881752

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