Explanation

The physical effect that fh temperature difference in materials directly converts into potential difference or from potential difference to temperature difference. The thermoelectric effect phenomenon generally includes separate physical effects, namely, the Seebeck effect, Peltier effect and Thomson effect. The atomic scale mechanism of the thermoelectric effect is that the applied temperature gradient will diffusion the charged carriers in materials from the hot end to the cold end. Thus, the charge distribution at both ends of materials is uneven and voltage is generated. In fact, almost all materials have some degree of thermoelectric effect, but the effect of most materials is so small that it can be ignored.

Classification