High Power Thermoelectric Generator Based on Vertical Silicon Nanowires
Shaimaa Elyamny, Elisabetta Dimaggio, Stefano Magagna, Dario Narducci, Giovanni Pennelli
Abstract
) collects together the good thermoelectric features of silicon, in terms of high power factor, and a very reduced thermal conductivity, which resulted in being exceptionally low (1.8 W/(m K), close to the amorphous limit). The generated electrical power density is remarkably high for a Si-based thermoelectric generator, and it is suitable for scavenging applications which can exploit small temperature differences. A full characterization of the device (Seebeck coefficient, thermal conductivity, maximum power output) is reported and discussed.
Topics & Concepts
Thermoelectric generatorSeebeck coefficientMaterials scienceThermoelectric effectThermoelectric materialsThermal conductivitySiliconOptoelectronicsPower densityAmorphous siliconEngineering physicsNanotechnologyPower (physics)Composite materialCrystalline siliconEngineeringPhysicsThermodynamicsAdvanced Thermoelectric Materials and DevicesThermal properties of materialsThermal Radiation and Cooling Technologies