Effect of nanostructuration on the thermal conductivity of thermoelectric materials

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

doi:10.1109/THERMINIC.2013.6675191

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 proceeding › Conference contribution › Academic › peer-review

2 Citations (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 language	English
Title of host publication	19th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC)
Pages	73-78
Number of pages	6
ISBN (Electronic)	978-1-4799-2272-7
DOIs	https://doi.org/10.1109/THERMINIC.2013.6675191
Publication status	Published - 1 Jan 2013
Externally published	Yes
Event	19th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2013 - Fraunhofer Forum, Berlin, Germany Duration: 25 Sept 2013 → 27 Sept 2013 Conference number: 19

Conference

Conference	19th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2013
Abbreviated title	THERMINIC 2013
Country/Territory	Germany
City	Berlin
Period	25/09/13 → 27/09/13

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10.1109/THERMINIC.2013.6675191

Cite this

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title = "Effect of nanostructuration on the thermal conductivity of thermoelectric materials",

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.",

author = "Stephane Grauby and Etienne Puyoo and Rojo, {Miguel Munoz} and Marisol Martin-Gonzalez and Wilfrid Claeys and Stefan Dilhaire",

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doi = "10.1109/THERMINIC.2013.6675191",

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Grauby, S, Puyoo, E, Rojo, MM, 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, 19th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2013, Berlin, Germany, 25/09/13. https://doi.org/10.1109/THERMINIC.2013.6675191

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T1 - Effect of nanostructuration on the thermal conductivity of thermoelectric materials

AU - Grauby, Stephane

AU - Puyoo, Etienne

AU - Rojo, Miguel Munoz

AU - Martin-Gonzalez, Marisol

AU - Claeys, Wilfrid

AU - Dilhaire, Stefan

N1 - Conference code: 19

PY - 2013/1/1

Y1 - 2013/1/1

N2 - 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.

AB - 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.

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U2 - 10.1109/THERMINIC.2013.6675191

DO - 10.1109/THERMINIC.2013.6675191

M3 - Conference contribution

AN - SCOPUS:84898937472

SN - 978-1-4799-2271-0

SP - 73

EP - 78

BT - 19th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC)

T2 - 19th International Workshop on Thermal Investigations of ICs and Systems, THERMINIC 2013

Y2 - 25 September 2013 through 27 September 2013

ER -

Effect of nanostructuration on the thermal conductivity of thermoelectric materials

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