Abstract
The discovery of the thermoelectric effect was almost 200 years ago. This chapter presents a primer of the fundamental physics to help readers understand the essentials of past and current theories on thermoelectric materials related to radioisotope thermoelectric generators. In reciprocal space, the smallest repeating unit is called a primitive or Wigner‐Seitz cell. The first Brillouin zone is a set of points that start from the origin without crossing any Bragg planes. While the classic free electron gas model can explain the transport behavior of metals, analyzing the electron waves using periodic potential in a crystal lattice becomes necessary to explain the transport properties of semiconductors and insulators. The atomic electron bandgap of thermoelectric materials has a direct influence on thermoelectric couple performance. Chasmar and Stratton, followed by Mahan and Sofo, developed theories on improving thermoelectric materials.
Original language | English |
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Title of host publication | The Technology of Discovery |
Subtitle of host publication | Radioisotope Thermoelectric Generators and Thermoelectric Technologies for Space Exploration |
Publisher | wiley |
Pages | 133-149 |
Number of pages | 17 |
ISBN (Electronic) | 9781119811398 |
ISBN (Print) | 9781119811374 |
DOIs | |
State | Published - Jan 1 2023 |
Keywords
- Atomic electron bandgap
- Brillouin zone
- Electron waves
- Radioisotope thermoelectric generators
- Thermoelectric materials
- Wigner‐Seitz cell