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A method of measuring the thermal conductance and the heat capacity of a nanowire is presented. The nanowire is suspended in vacuum to ensure the thermal isolation, and the resistance is measured with respect to the square of the current to obtain the thermal conductance in the length direction. The heat capacity is evaluated by the frequency response of the 3f component of the voltage across the...
Thermoelectric generators (TEGs) can improve the net power consumption of electronic packages by generating power from the chip waste heat. In this study, a 3D computational model of electronic package with silicon nanowire (Si-NW) based embedded TEGs has been developed and the effect of crucial geometric parameters, contact resistances and thermal properties such as pitch length and length of Si-NWs,...
This paper proposes a test rig design to test thermoelectric generators. It outlines the design process and the selection of utilized materials. Selection of the heat source, design of the heater platform, and temperature control and monitoring are all outlined. A LabVIEW interface is developed for this purpose and a TEG is tested. Results show that the desired temperature is reached though at a slow...
This work aims at improving the energy harvester performance by using low-dimensional thermoelectric materials. A micro-thermoelectric generator with quantum well thermocouples is developed by state-of-the-art CMOS (Complementary metal-oxide semiconductor) process. A relaxation-time model is applied to analyze the characteristic length of silicon germanium quantum well, and a thermal model is also...
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