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5.3 Materials for thermoelectric devices by Lothar Ackermann; Matthias Agne; Ananya Banik; Thomas Bauer; Florian Baur; Martin Bertau; Leonhard Dorsch; Miroslav Dramicanin; Peter Fröhlich; Michael Ghidiu; Robert Glaum; Heiko Hayen; Theodoor Hendriks; Hubert Huppertz; Christoph Janiak; Oliver Janka; Wenqi Jin; Thomas Jüstel; Thomas M Klapötke; Holger Kohlmann; Hubert Koller; Christian Kränkel; Konrad Mertens; Yaroslav Mudryk; Shilie Pan; Sandra Pavón; Vitalij K Pecharsky; Rainer Pöttgen; Manfred Salvermoser; Stefan Schramm; Markus Seifert; Thomas Staffel; Ilona Stengel; Tom Stephan; Cristian A Strassert; Klaus Stöwe; Jan J Weigand; Zhihua Yang; Wolfgang Zeier; Raimund Ziegler is a book available to read on EtoBox.

What is 5.3 Materials for thermoelectric devices about?

All materials develop an internal voltage difference ΔV when they are subjected to a temperature gradient (defined by the temperature difference ΔT ) across them, an effect described in solids by the Seebeck coefficient (S = ΔV=ΔT) [1]. This effect arises because the distribution of excited electrons is different at different temperatures, so a material that is not in thermal equilibrium (i.e. ΔT ≠ 0) has a driving force for electron transport. Thus, it is possible to use the Seebeck effect to drive an electric current. As a complementary effect, it is also possible to use an electric current to pump heat from one side of a material to the other, leading to an effective cooling. This is known as the Peltier effect. The Seebeck and Peltier effects are the so-called thermoelectric effects.Although every material has a Seebeck and Peltier coefficient, not every material has the right combination of electronic and thermal properties to usefully harness thermoelectric effects. In fact, the vast majority of materials have negligible utility for thermoelectric applications. To understand why, we can look at the thermoelectric material figure-of-merit zT first proposed by Ioffe [2]

Author

Lothar Ackermann; Matthias Agne; Ananya Banik; Thomas Bauer; Florian Baur; Martin Bertau; Leonhard Dorsch; Miroslav Dramicanin; Peter Fröhlich; Michael Ghidiu; Robert Glaum; Heiko Hayen; Theodoor Hendriks; Hubert Huppertz; Christoph Janiak; Oliver Janka; Wenqi Jin; Thomas Jüstel; Thomas M Klapötke; Holger Kohlmann; Hubert Koller; Christian Kränkel; Konrad Mertens; Yaroslav Mudryk; Shilie Pan; Sandra Pavón; Vitalij K Pecharsky; Rainer Pöttgen; Manfred Salvermoser; Stefan Schramm; Markus Seifert; Thomas Staffel; Ilona Stengel; Tom Stephan; Cristian A Strassert; Klaus Stöwe; Jan J Weigand; Zhihua Yang; Wolfgang Zeier; Raimund Ziegler

Publisher

de Gruyter GmbH, Walter

Published

2022

Language

EN

ISBN

9783110799002

Subjects

Engineering, Science, Chemistry