Seebeckeffektinä

Seebeckeffektinä, often referred to as the Seebeck effect, describes the phenomenon where a temperature difference between two dissimilar conductors or semiconductors creates an electrical voltage. This voltage, known as the thermoelectric voltage, is directly proportional to the temperature difference and the material properties of the conductors. The effect is a consequence of the movement of charge carriers (electrons or holes) within the materials. When one end of a conductor is heated, the charge carriers at that end gain kinetic energy and diffuse towards the cooler end. In a circuit formed by two different materials, this diffusion leads to a net accumulation of charge at the ends, generating a potential difference.

The magnitude of the Seebeck effect is quantified by the Seebeck coefficient, which varies for different materials. Materials with a high Seebeck coefficient are desirable for thermoelectric applications as they can generate a larger voltage for a given temperature difference. The Seebeck effect is the fundamental principle behind thermoelectric generators (TEGs), devices that convert heat energy directly into electrical energy. TEGs have found applications in areas such as waste heat recovery, remote power generation, and powering small electronic devices. Reversing the effect, where an electrical current is passed through a junction of dissimilar conductors to create a temperature difference, is known as the Peltier effect.