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IMB-CNM Talks: An all-Si thermoelectric microgenerator: Improved design and heat exchanger integration - Inci Donmez

Sala de Actos Pepe Millán, IMB-CNM, Campus UAB
15/09/2017 10:30am

Abstract: We present the fabrication and characterization of an all-Si planar thermoelectric microgenerator (μTEG) with ordered dense arrays of CVD-VLS grown Si nanowires as active material. Compared to our first generation μTEG, power output increased by 70 times as a result of optimizations in processing and device architecture that improved both thermal, and electrical performances. Additionally, we defined a new route to integrate a heat exchanger which resulted in a power output three orders of magnitude larger. Considering the optimization in device design and the effect of the heat exchanger, the proposed microgenerator will be appropriate to meet the requirements of micropower wireless sensor nodes where 50-200 °C waste heat source is available.

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