Thermoelectric generator is a device taking advantage of the temperature difference in thermoelectric material to generate electric power

where the higher the temperature difference of the hot-cold ends

the higher the efficiency will be. However intensive thermal stress level in solar thermoelectric generator (TEG) model provoked by high heat flux is responsible for structure failure of the device

which negatively influences the expected lifecycle of thermoelectric module. Based on the fact

three-dimensional TEG models with different geometries are employed to examine the effect of the conducting strip

ceramic plate and tin soldering geometry configuration on the module's stress level. The simulation results indicate that decreasing ceramic plate thickness

shortening thermo-pins distance

reducing copper strip thickness will effectively alleviate thermal stress intensity in the module.