Thermoelectric generators are solid-state devices that convert heat into electricity. Unlike conventional heat engines, thermoelectric generators have no moving components and are completely silent.
In the video below, we have shown a thermoelectric generator with its structure. A mobile phone can be charged using the electricity generated by the thermoelectric generator, which is obtained from the thermal difference.
Thermoelectric systems can be easily designed for small heat sources and small temperature differences.
A thermodynamic generator generates electrical force through the flow of heat between two points at different temperatures. As heat flows from the hot to cold source, the free charge carriers (electrons or holes) in the material are also pushed to the cold part.
By connecting an electron conducting material (n-type semiconductor) and a conductive hole material (p-type semiconductor), a voltage is obtained in series.