Crossover from ballistic to diffusive thermal transport in suspended graphene membranes

We report heat transport measurements on suspended single-layer graphene disks with radius of 150-1600 nm using a high-vacuum scanning thermal microscope. The results of this study revealed a radius-dependent thermal contact resistance between tip and graphene, with values between 1.15 and 1.52 × 10...

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Authors: El Sachat, A., Köenemann, F., Menges, F., Del Corro, E., Garrido, J. A., Sotomayor Torres, C. M., Alzina, F., Gotsmann, B.
Format: article
Publication Date:2019
Country:España
Institution:Universidad Autónoma de Madrid
Repository:Biblos-e Archivo. Repositorio Institucional de la UAM
Language:English
OAI Identifier:oai:repositorio.uam.es:10486/690778
Online Access:http://hdl.handle.net/10486/690778
https://dx.doi.org/10.1088/2053-1583/ab097d
Access Level:Open access
Keyword:Ballistic phonon transport
Graphene
Nanoscale thermal imaging
Nanoscale thermal transport
Scanning thermal microscopy
Física
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spelling Crossover from ballistic to diffusive thermal transport in suspended graphene membranesEl Sachat, A.Köenemann, F.Menges, F.Del Corro, E.Garrido, J. A.Sotomayor Torres, C. M.Alzina, F.Gotsmann, B.Ballistic phonon transportGrapheneNanoscale thermal imagingNanoscale thermal transportScanning thermal microscopyFísicaWe report heat transport measurements on suspended single-layer graphene disks with radius of 150-1600 nm using a high-vacuum scanning thermal microscope. The results of this study revealed a radius-dependent thermal contact resistance between tip and graphene, with values between 1.15 and 1.52 × 108 KW-1. The observed scaling of thermal resistance with radius is interpreted in terms of ballistic phonon transport in suspended graphene discs with radius smaller than 775 nm. In larger suspended graphene discs (radius >775 nm), the thermal resistance increases with radius, which is attributed to in-plane heat transport being limited by phonon-phonon resistive scattering processes, which resulted in a transition from ballistic to diffusive thermal transport. In addition, by simultaneously mapping topography and steady-state heat flux signals between a self-heated scanning probe sensor and graphene with 17 nm thermal spatial resolution, we demonstrated that the surface quality of the suspended graphene and its connectivity with the Si/SiO2 substrate play a determining role in thermal transport. Our approach allows the investigation of heat transport in suspended graphene at sub-micrometre length scales and overcomes major limitations of conventional experimental methods usually caused by extrinsic thermal contact resistances, assumptions on the value of the graphene's optical absorbance and limited thermal spatial resolutionAE, FA and CMST acknowledge financial support from the FP7 project QUANTIHEAT (No. 604668) and the Spanish MICINN project PHENTOM(FIS2015-70862-P). ICN2 is supported by the Severo Ochoa program from Spanish MINECO (Grants No. SEV-2013-0295 and No. SEV-2017-0706) and by the CERCA programme/Generalitat de Catalunya. FK and BG acknowledge funding in through the H2020 European project CONNECT under the grant agreement number 688612 (www.connect-h2020. eu). FM acknowledges support by The Branco Weiss Fellowship–Society in Science administered by the ETH Zurich. The authors thank K Moselund and N Mosso for their supportIOP PUBLISHING LTDDepartamento de Física de la Materia CondensadaFacultad de Ciencias20192019-03-15research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/690778https://dx.doi.org/10.1088/2053-1583/ab097dreponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6907782026-06-23T12:46:27Z
dc.title.none.fl_str_mv Crossover from ballistic to diffusive thermal transport in suspended graphene membranes
title Crossover from ballistic to diffusive thermal transport in suspended graphene membranes
spellingShingle Crossover from ballistic to diffusive thermal transport in suspended graphene membranes
El Sachat, A.
Ballistic phonon transport
Graphene
Nanoscale thermal imaging
Nanoscale thermal transport
Scanning thermal microscopy
Física
title_short Crossover from ballistic to diffusive thermal transport in suspended graphene membranes
title_full Crossover from ballistic to diffusive thermal transport in suspended graphene membranes
title_fullStr Crossover from ballistic to diffusive thermal transport in suspended graphene membranes
title_full_unstemmed Crossover from ballistic to diffusive thermal transport in suspended graphene membranes
title_sort Crossover from ballistic to diffusive thermal transport in suspended graphene membranes
dc.creator.none.fl_str_mv El Sachat, A.
Köenemann, F.
Menges, F.
Del Corro, E.
Garrido, J. A.
Sotomayor Torres, C. M.
Alzina, F.
Gotsmann, B.
author El Sachat, A.
author_facet El Sachat, A.
Köenemann, F.
Menges, F.
Del Corro, E.
Garrido, J. A.
Sotomayor Torres, C. M.
Alzina, F.
Gotsmann, B.
author_role author
author2 Köenemann, F.
Menges, F.
Del Corro, E.
Garrido, J. A.
Sotomayor Torres, C. M.
Alzina, F.
Gotsmann, B.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física de la Materia Condensada
Facultad de Ciencias
dc.subject.none.fl_str_mv Ballistic phonon transport
Graphene
Nanoscale thermal imaging
Nanoscale thermal transport
Scanning thermal microscopy
Física
topic Ballistic phonon transport
Graphene
Nanoscale thermal imaging
Nanoscale thermal transport
Scanning thermal microscopy
Física
description We report heat transport measurements on suspended single-layer graphene disks with radius of 150-1600 nm using a high-vacuum scanning thermal microscope. The results of this study revealed a radius-dependent thermal contact resistance between tip and graphene, with values between 1.15 and 1.52 × 108 KW-1. The observed scaling of thermal resistance with radius is interpreted in terms of ballistic phonon transport in suspended graphene discs with radius smaller than 775 nm. In larger suspended graphene discs (radius >775 nm), the thermal resistance increases with radius, which is attributed to in-plane heat transport being limited by phonon-phonon resistive scattering processes, which resulted in a transition from ballistic to diffusive thermal transport. In addition, by simultaneously mapping topography and steady-state heat flux signals between a self-heated scanning probe sensor and graphene with 17 nm thermal spatial resolution, we demonstrated that the surface quality of the suspended graphene and its connectivity with the Si/SiO2 substrate play a determining role in thermal transport. Our approach allows the investigation of heat transport in suspended graphene at sub-micrometre length scales and overcomes major limitations of conventional experimental methods usually caused by extrinsic thermal contact resistances, assumptions on the value of the graphene's optical absorbance and limited thermal spatial resolution
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-03-15
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/690778
https://dx.doi.org/10.1088/2053-1583/ab097d
url http://hdl.handle.net/10486/690778
https://dx.doi.org/10.1088/2053-1583/ab097d
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP PUBLISHING LTD
publisher.none.fl_str_mv IOP PUBLISHING LTD
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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