Abstract
A thermodynamic understanding of Seebeck coefficient was demonstrated in terms of electrochemical potential. It divided the contributions to the Seebeck coefficient into two contributions: the effect of thermal electronic excitations due to Fermi distribution and the effect of charge carrier gradient due to thermal expansion. The procedure is illustrated within the rigid band approximation in terms of the electronic density-of-states and the quasiharmonic approximation in terms of the phonon density-of-states. Numerical results were given using the n-type high temperature thermoelectric material La3-xTe4 at x = 0, 0.25, and 0.33 as the prototype at a variety of carrier concentrations.
Original language | English (US) |
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Title of host publication | Zentropy |
Subtitle of host publication | Tools, Modelling, and Applications |
Publisher | Jenny Stanford Publishing |
Pages | 233-245 |
Number of pages | 13 |
ISBN (Electronic) | 9781040118566 |
ISBN (Print) | 9789815129441 |
State | Published - Aug 23 2024 |
All Science Journal Classification (ASJC) codes
- General Engineering
- General Physics and Astronomy
- General Chemistry
- General Agricultural and Biological Sciences
- General Biochemistry, Genetics and Molecular Biology
- General Medicine
- General Chemical Engineering