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Proceedings Paper

TEGs as self-sufficient power supply for sensors and microelectromechanical systems
Author(s): M. Schönhoff; U. Hilleringmann
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Paper Abstract

Thermoelectric generators (TEGs) can be used as robust and maintenance-free power supplies. The power density of currently available TEGs is about 1 W/cm² and sufficient for many low power sensor/microelectromechanical systems. By changing the sintering atmosphere and using a special set-up a standard industry process used for insulating or metallic materials was transferred to thermoelectric FeSi2-, Mg2Si- and SiGe-material. Thereby, separated compact- and sintering steps allows a mass producible process in contrast to the almost exclusively used SPS- and FAST-processes. All three materials have been further processed to functional TEG-modules by sawing, bonding and electrically contacting with TiSi2. Thereby, the mechanical bond as well as the electrical contacts are thermally stable up to 800 °C. The general functionality and the characteristics of the final TEG-modules were confirmed by analysis in a measurement setup that simulates an application in a realistic environment.

Paper Details

Date Published: 3 February 2017
PDF: 6 pages
Proc. SPIE 10036, Fourth Conference on Sensors, MEMS, and Electro-Optic Systems, 100361B (3 February 2017); doi: 10.1117/12.2243133
Show Author Affiliations
M. Schönhoff, Univ. Paderborn (Germany)
U. Hilleringmann, Univ. Paderborn (Germany)

Published in SPIE Proceedings Vol. 10036:
Fourth Conference on Sensors, MEMS, and Electro-Optic Systems
Monuko du Plessis, Editor(s)

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