Abstract

Design methodology and performance of nano thermoelectric generators (nTEGs) using human body heat are investigated for wearable device applications. A transverse type of module suitable for a thin-film thermopile is employed for the nTEGs. It is revealed that the thermal and electrical insulation of the interspace of their modules is an important factor to determine the output power of the nTEGs. A new module structure using insulator/vacuum hybrid insulation with its design methodology that maximizes the output power is developed. Output power of a few milliwatts can be achieved by a wrist-band style mounting of the nTEG module with an optimized design.

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