A novel contactless technique for thermal field mapping and thermal conductivity determination

We present a novel contactless technique for thermal conductivity determination and thermal field mapping based on creating a thermal distribution of phonons using a heating laser, while a second laser probes the local temperature through the spectral position of a Raman active mode. The spatial res...

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Autores: Reparaz, Juan Sebastián|||0000-0001-9679-0075, Chávez Ángel, Emigdio|||0000-0002-9783-0806, Wagner, Markus R.|||0000-0002-7367-5629, Graczykowski, Bartlomiej|||0000-0003-4787-8622, Gomis-Bresco, Jordi|||0000-0002-6066-7064, Alzina, Francesc|||0000-0002-7082-0624, Sotomayor Torres, Clivia M.|||0000-0001-9986-2716
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:232142
Acceso en línea:https://ddd.uab.cat/record/232142
https://dx.doi.org/urn:doi:10.1063/1.4867166
Access Level:acceso abierto
Palabra clave:Contactless technique
Free standing membranes
Raman active modes
Single-crystalline
Spatial resolution
Temperature accuracies
Thermal distributions
Two-dimensional materials
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spelling A novel contactless technique for thermal field mapping and thermal conductivity determinationtwo-laser Raman thermometryReparaz, Juan Sebastián|||0000-0001-9679-0075Chávez Ángel, Emigdio|||0000-0002-9783-0806Wagner, Markus R.|||0000-0002-7367-5629Graczykowski, Bartlomiej|||0000-0003-4787-8622Gomis-Bresco, Jordi|||0000-0002-6066-7064Alzina, Francesc|||0000-0002-7082-0624Sotomayor Torres, Clivia M.|||0000-0001-9986-2716Contactless techniqueFree standing membranesRaman active modesSingle-crystallineSpatial resolutionTemperature accuraciesThermal distributionsTwo-dimensional materialsWe present a novel contactless technique for thermal conductivity determination and thermal field mapping based on creating a thermal distribution of phonons using a heating laser, while a second laser probes the local temperature through the spectral position of a Raman active mode. The spatial resolution can be as small as 300 nm, whereas its temperature accuracy is ±2 K. We validate this technique investigating the thermal properties of three free-standing single crystalline Si membranes with thickness of 250, 1000, and 2000 nm. We show that for two-dimensional materials such as free-standing membranes or thin films, and for small temperature gradients, the thermal field decays as T(r) ∝ ln(r) in the diffusive limit. The case of large temperature gradients within the membranes leads to an exponential decay of the thermal field, T ∝ exp[ - A·ln(r)]. The results demonstrate the full potential of this new contactless method for quantitative determination of thermal properties. The range of materials to which this method is applicable reaches far beyond the here demonstrated case of Si, as the only requirement is the presence of a Raman active mode. 22014-01-0120142014-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/232142https://dx.doi.org/urn:doi:10.1063/1.4867166reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 318352European Commission https://doi.org/10.13039/501100000780 318117European Commission https://doi.org/10.13039/501100000780 309150European Commission https://doi.org/10.13039/501100000780 270789-2Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2012-31392Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 CSD2010-0044open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2321422026-06-06T12:50:31Z
dc.title.none.fl_str_mv A novel contactless technique for thermal field mapping and thermal conductivity determination
two-laser Raman thermometry
title A novel contactless technique for thermal field mapping and thermal conductivity determination
spellingShingle A novel contactless technique for thermal field mapping and thermal conductivity determination
Reparaz, Juan Sebastián|||0000-0001-9679-0075
Contactless technique
Free standing membranes
Raman active modes
Single-crystalline
Spatial resolution
Temperature accuracies
Thermal distributions
Two-dimensional materials
title_short A novel contactless technique for thermal field mapping and thermal conductivity determination
title_full A novel contactless technique for thermal field mapping and thermal conductivity determination
title_fullStr A novel contactless technique for thermal field mapping and thermal conductivity determination
title_full_unstemmed A novel contactless technique for thermal field mapping and thermal conductivity determination
title_sort A novel contactless technique for thermal field mapping and thermal conductivity determination
dc.creator.none.fl_str_mv Reparaz, Juan Sebastián|||0000-0001-9679-0075
Chávez Ángel, Emigdio|||0000-0002-9783-0806
Wagner, Markus R.|||0000-0002-7367-5629
Graczykowski, Bartlomiej|||0000-0003-4787-8622
Gomis-Bresco, Jordi|||0000-0002-6066-7064
Alzina, Francesc|||0000-0002-7082-0624
Sotomayor Torres, Clivia M.|||0000-0001-9986-2716
author Reparaz, Juan Sebastián|||0000-0001-9679-0075
author_facet Reparaz, Juan Sebastián|||0000-0001-9679-0075
Chávez Ángel, Emigdio|||0000-0002-9783-0806
Wagner, Markus R.|||0000-0002-7367-5629
Graczykowski, Bartlomiej|||0000-0003-4787-8622
Gomis-Bresco, Jordi|||0000-0002-6066-7064
Alzina, Francesc|||0000-0002-7082-0624
Sotomayor Torres, Clivia M.|||0000-0001-9986-2716
author_role author
author2 Chávez Ángel, Emigdio|||0000-0002-9783-0806
Wagner, Markus R.|||0000-0002-7367-5629
Graczykowski, Bartlomiej|||0000-0003-4787-8622
Gomis-Bresco, Jordi|||0000-0002-6066-7064
Alzina, Francesc|||0000-0002-7082-0624
Sotomayor Torres, Clivia M.|||0000-0001-9986-2716
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Contactless technique
Free standing membranes
Raman active modes
Single-crystalline
Spatial resolution
Temperature accuracies
Thermal distributions
Two-dimensional materials
topic Contactless technique
Free standing membranes
Raman active modes
Single-crystalline
Spatial resolution
Temperature accuracies
Thermal distributions
Two-dimensional materials
description We present a novel contactless technique for thermal conductivity determination and thermal field mapping based on creating a thermal distribution of phonons using a heating laser, while a second laser probes the local temperature through the spectral position of a Raman active mode. The spatial resolution can be as small as 300 nm, whereas its temperature accuracy is ±2 K. We validate this technique investigating the thermal properties of three free-standing single crystalline Si membranes with thickness of 250, 1000, and 2000 nm. We show that for two-dimensional materials such as free-standing membranes or thin films, and for small temperature gradients, the thermal field decays as T(r) ∝ ln(r) in the diffusive limit. The case of large temperature gradients within the membranes leads to an exponential decay of the thermal field, T ∝ exp[ - A·ln(r)]. The results demonstrate the full potential of this new contactless method for quantitative determination of thermal properties. The range of materials to which this method is applicable reaches far beyond the here demonstrated case of Si, as the only requirement is the presence of a Raman active mode.
publishDate 2014
dc.date.none.fl_str_mv 2
2014-01-01
2014
2014-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
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 https://ddd.uab.cat/record/232142
https://dx.doi.org/urn:doi:10.1063/1.4867166
url https://ddd.uab.cat/record/232142
https://dx.doi.org/urn:doi:10.1063/1.4867166
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 318352
European Commission https://doi.org/10.13039/501100000780 318117
European Commission https://doi.org/10.13039/501100000780 309150
European Commission https://doi.org/10.13039/501100000780 270789-2
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2012-31392
Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 CSD2010-0044
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
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
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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