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http://hdl.handle.net/10261/181544
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dc.contributor.author | Pérez Taborda, Jaime Andrés | es_ES |
dc.contributor.author | Muñoz Rojo, Miguel | es_ES |
dc.contributor.author | Maiz, Jon | es_ES |
dc.contributor.author | Neophytou,Neophytos | es_ES |
dc.contributor.author | Martín-González, Marisol | es_ES |
dc.date.accessioned | 2019-05-16T13:11:01Z | - |
dc.date.available | 2019-05-16T13:11:01Z | - |
dc.date.issued | 2016-09-21 | - |
dc.identifier.citation | Scientific Reports 6: 32778 (2016) | es_ES |
dc.identifier.uri | http://hdl.handle.net/10261/181544 | - |
dc.description.abstract | In this work, we measure the thermal and thermoelectric properties of large-area Si0.8Ge0.2 nano-meshed films fabricated by DC sputtering of Si0.8Ge0.2 on highly ordered porous alumina matrices. The Si0.8Ge0.2 film replicated the porous alumina structure resulting in nano-meshed films. Very good control of the nanomesh geometrical features (pore diameter, pitch, neck) was achieved through the alumina template, with pore diameters ranging from 294 ± 5nm down to 31 ± 4 nm. The method we developed is able to provide large areas of nano-meshes in a simple and reproducible way, being easily scalable for industrial applications. Most importantly, the thermal conductivity of the films was reduced as the diameter of the porous became smaller to values that varied from κ = 1.54 ± 0.27 W K−1m−1, down to the ultra-low κ = 0.55 ± 0.10 W K−1m−1 value. The latter is well below the amorphous limit, while the Seebeck coefficient and electrical conductivity of the material were retained. These properties, together with our large area fabrication approach, can provide an important route towards achieving high conversion efficiency, large area, and high scalable thermoelectric materials. | es_ES |
dc.description.sponsorship | This work has been supported by 7th framework European project NANOHITEC 263306, national project PHOMENTA MAT2011-27911, CONSOLIDER NANOTHERM Grant No. CSD2010-00044, and INFANTE. J.A. Pérez acknowledges Ministerio de Economia y Competitividad for his FPI grant and Banco Santander for a special grant for a short stay in Brazil (Brazilian Center of Physical Researches-Rio de Janeiro). M. M. R. wants to acknowledge JAE Pre-Doc grant for PhD financial support. NN acknowledges funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 678763). NN also acknowledges Dr. Hossein Karamitaheri for helpful discussions. MMG wants also to acknowledge the Salvador Madariaga Fellowship. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Nature Publishing Group | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/263306 | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/678763 | es_ES |
dc.relation.isversionof | Publisher's version | es_ES |
dc.rights | openAccess | es_ES |
dc.title | Ultra-low thermal conductivities in large-area Si-Ge nanomeshes for thermoelectric applications | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1038/srep32778 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | https://doi.org/10.1038/srep32778 | es_ES |
dc.identifier.e-issn | 2045-2322 | - |
dc.rights.license | http://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.contributor.funder | European Commission | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | es_ES |
dc.contributor.funder | Banco Santander | es_ES |
dc.contributor.funder | Consejo Superior de Investigaciones Científicas (España) | es_ES |
dc.contributor.funder | European Research Council | es_ES |
dc.contributor.funder | Ministerio de Educación, Cultura y Deporte (España) | es_ES |
dc.contributor.funder | Centro Brasileiro de Pesquisas Físicas (Brasil) | es_ES |
dc.relation.csic | Sí | es_ES |
oprm.item.hasRevision | no ko 0 false | * |
dc.identifier.funder | http://dx.doi.org/10.13039/100010784 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003339 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003176 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000780 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000781 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.identifier.pmid | 27650202 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.languageiso639-1 | en | - |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.openairetype | artículo | - |
Aparece en las colecciones: | (IMN-CNM) Artículos |
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Fichero | Descripción | Tamaño | Formato | |
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Ultra-low thermal conductivities_PerezTaborda.pdf | 1,15 MB | Adobe PDF | Visualizar/Abrir |
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