Thermoelectric generators as an alternative for reliable powering of wearable devices with wasted heat

Everyday life relies heavily on electricity, which is also the foundation of innumerable other uses. Therefore, a continual study is required to enhance current ways or discover new ones for boosting power generation. One well-known and widely used method of generating electricity is the thermoelectric generator (TEG), which employs the Seebeck effect to transform waste energy into electrical energy. A TEG can be used whenever there is a temperature differential since the Seebeck effect allows temperature change to be converted into electrical energy. The foundation of the TEG is presented in the current study, along with an analysis of the current state of the art on TEGs. The different TEG geometries and their associated issues are also presented in this study. The new TEG technologies and the difficulties they provide are also discussed in this paper.