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Ingénierie des Matériaux et des Microgénérateurs Thermoélectriques

Abstract : Planar microthermoelectric generators are new energy sources for portable electronics. We have optimized their geometry by using an analytical and numerical model. The fabrication process of a generator using polycrystallin silicon as the active material is also presented. The access to the thermal conductivity is essential for the engineering of thermoelectric materials the microgenerators are made of. The potential of the 3omega and Völklein methods to measure the thermal conductivity of thin films is investigated experimentally and by numerical simulations. The heat transfer between microsystems and their environment is studied by the Völklein method. The figure of merit of polycristallin silicon layers has been improved by a factor of three but is still very low. The electrical properties of lead telluride-based multilayers offer good prospects for their integration in microsystems.
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https://tel.archives-ouvertes.fr/tel-00002757
Contributor : Alexandre Jacquot <>
Submitted on : Tuesday, April 22, 2003 - 10:19:25 AM
Last modification on : Wednesday, April 17, 2019 - 1:32:41 AM
Long-term archiving on: : Tuesday, September 11, 2012 - 8:20:14 PM

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  • HAL Id : tel-00002757, version 1

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Alexandre Jacquot. Ingénierie des Matériaux et des Microgénérateurs Thermoélectriques. Modélisation et simulation. Institut National Polytechnique de Lorraine - INPL, 2003. Français. ⟨tel-00002757⟩

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