Effect of nanostructuration on the thermal conductivity of thermoelectric materials

Stephane Grauby*, Etienne Puyoo, Miguel Munoz Rojo, Marisol Martin-Gonzalez, Wilfrid Claeys, Stefan Dilhaire

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

We have investigated various kinds of nanowires (Si, Bi2Te 3, SiGe) in order to evaluate the influence of the nanostructuration on their thermal conductivity. The method used is a 3ω-SThM (Scanning Thermal Microscopy) technique which enables to simultaneously measure the topography and the thermal conductivity on an assembly of NWs. We detail the procedure from the measurement itself to the nanowire thermal conductivity estimation. We show that the nanostructuration leads to a thermal conductivity reduction for the 3 materials we have studied and that Si and SiGe nanowire samples seem more promising than Bi2Te3 NWs in terms of thermoelectric applications.

Original languageEnglish
Title of host publication19th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC)
Pages73-78
Number of pages6
ISBN (Electronic)978-1-4799-2272-7
DOIs
Publication statusPublished - 1 Jan 2013
Externally publishedYes
Event19th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2013 - Fraunhofer Forum, Berlin, Germany
Duration: 25 Sep 201327 Sep 2013
Conference number: 19

Conference

Conference19th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2013
Abbreviated titleTHERMINIC 2013
CountryGermany
CityBerlin
Period25/09/1327/09/13

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  • Cite this

    Grauby, S., Puyoo, E., Rojo, M. M., Martin-Gonzalez, M., Claeys, W., & Dilhaire, S. (2013). Effect of nanostructuration on the thermal conductivity of thermoelectric materials. In 19th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC) (pp. 73-78) https://doi.org/10.1109/THERMINIC.2013.6675191