Seebeck voltage
electronics
Quick Summary
The Seebeck effect, discovered by Thomas Johann Seebeck in 1821, is the production of an electromotive force (emf) and electric current in a loop of dissimilar conductors when their junctions are at different temperatures. This phenomenon is the basis of thermoelectricity, which is the direct conversion of heat into electricity.12
Key Concepts:
- Seebeck Effect: When two different conductive materials are joined at two points, and these points are kept at different temperatures, a voltage is generated. This voltage is known as the Seebeck voltage and is proportional to the temperature difference.134
- Thermocouple: Devices utilizing the Seebeck effect are called thermocouples and are highly sensitive instruments for measuring temperature.13
- Applications: Beyond temperature measurement, the Seebeck effect is used to generate electric power for specialized applications, such as in thermoelectric power generators that can be fueled by fossil fuels, solar energy, or radioactive isotopes.14
While the effect occurs between metals, it is significantly amplified in semiconductor materials, leading to practical applications in power generation and refrigeration.24
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