期刊
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
卷 18, 期 3, 页码 763-772出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JMEMS.2009.2021104
关键词
Bi2Te3; electrochemical deposition (ECD); power MEMS; SU-8; thermoelectric generator; 3-D microstructure
We demonstrate and discuss the performance of fully integrated and flexible micro thermoelectric generators (mu TEGs). The devices are fabricated with a low-cost microfabrication process based on electrochemical deposition of a thermoelectric material into a polymer mold. Overall system optimization is demonstrated by means of NiCu and p- and n-type Bi2Te3-based mu TEGs. Influences of design, material, fabrication, and performance parameters on device performance are explained by means of measurements and model calculations. The fabricated devices generate up to 2.6 * 10(-3) mu W . cm(-2) . K-2 for devices with NiCu thermocouples and up to 0.29 mu W. cm(-2) - K-2 for Bi2Te3-based generators in planar state. Mechanical testing on NiCu mu TEGs demonstrated functionality of the generator when bent to curvatures down to 7.5 mm. This allows for enhanced thermal contact to nonplanar surfaces. [2008-0084]
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