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The Physics of Thermoelectric Energy Conversion (Paperback)
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The Physics of Thermoelectric Energy Conversion (Paperback)
Series: IOP Concise Physics
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This book outlines the principles of thermoelectric generation and
refrigeration from the discovery of the Seebeck and Peltier effects
in the nineteenth century through the introduction of semiconductor
thermoelements in the mid-twentieth century to the more recent
development of nanostructured materials. It is shown that the
efficiency of a thermoelectric generator and the coefficient of
performance of a thermoelectric refrigerator can be related to a
quantity known as the figure of merit. The figure of merit depends
on the Seebeck coefficient and the ratio of the electrical to
thermal conductivity. It is shown that expressions for these
parameters can be derived from the band theory of solids. The
conditions for favourable electronic properties are discussed. The
methods for selecting materials with a low lattice thermal
conductivity are outlined and the ways in which the scattering of
phonons can be enhanced are described. The application of these
principles is demonstrated for specific materials including the
bismuth telluride alloys, bismuth antimony, alloys based on lead
telluride, silicon-germanium and materials described as
phonon-glass electron-crystals. It is shown that there can be
advantages in using the less familiar transverse thermoelectric
effects and the transverse thermomagnetic effects. Finally,
practical aspects of thermoelectric generation and refrigeration
are discussed. The book is aimed at readers who do not have a
specialised knowledge of solid state physics.
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