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Thermoelectric modules based on Half-Heusler materials produced in large quantities

 
: Bartholomé, Kilian; Balke, Benjamin; Zuckermann, Daniel; Köhne, Martin; Müller, Michael; Tarantik, Karina; König, Jan

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Journal of Electronic Materials 43 (2014), Nr.6, S.1775-1781
ISSN: 0361-5235
ISSN: 1543-186X
Englisch
Zeitschriftenaufsatz
Fraunhofer IPM ()
Half-Heusler; thermoelectric module; module performance; high-temperature module

Abstract
Half-Heusler (HH) compounds are some of the most promising candidates among the medium-temperature thermoelectric materials being investigated for automotive and industrial waste heat recovery applications. For n- as well as p-type material, peak ZT values larger than one have been published recently, and first modules have been built. The next step to facilitate the industrialization of thermoelectric module production is upscaling of material synthesis. In this paper, the latest results of the thermoelectric properties of HH compounds produced in kg batches are presented and compared with values published in the literature. The performance of modules built from these materials is analyzed with respect to power output and long-term stability of the material and electrical contacts.

: http://publica.fraunhofer.de/dokumente/N-303530.html