Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces

Nanocomposites that combine percolated nano-CoSb3 semiconductors with isolated nano-oxide clusters are shown as an effective approach to decouple electrical and thermal conductivity in thermoelectric applications through the formation of functional interfaces. This type of decoupling is very importa...

Descripción completa

Detalles Bibliográficos
Autores: Moure Arroyo, Alberto, Rull Bravo, Marta, Abad Mayor, Begoña, Campo, Ángel Adolfo del, Muñoz Rojo, Miguel, Aguirre, Myriam H., Jacquot, Alexandre, Fernández Lozano, José Francisco, Martín-González, Marisol
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/181324
Acceso en línea:http://hdl.handle.net/10261/181324
Access Level:acceso abierto
Palabra clave:Thermoelectric materials
Nanocomposite
Spark plasma sintering
Skutterudite
Functional interfaces
id ES_7762f30d2d9bcb68d2295ef5fbe9f99e
oai_identifier_str oai:digital.csic.es:10261/181324
network_acronym_str ES
network_name_str España
repository_id_str
spelling Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfacesMoure Arroyo, AlbertoRull Bravo, MartaAbad Mayor, BegoñaCampo, Ángel Adolfo delMuñoz Rojo, MiguelAguirre, Myriam H.Jacquot, AlexandreFernández Lozano, José FranciscoMartín-González, MarisolThermoelectric materialsNanocompositeSpark plasma sinteringSkutteruditeFunctional interfacesNanocomposites that combine percolated nano-CoSb3 semiconductors with isolated nano-oxide clusters are shown as an effective approach to decouple electrical and thermal conductivity in thermoelectric applications through the formation of functional interfaces. This type of decoupling is very important to increase the Figure of Merit (zT) of thermoelectrics and it is one of the greatest challenges searched by the community. We carry out an innovative synthesis of Skutterudite/oxide nanocomposites in air by high energy milling and sintering by Spark Plasma Sintering, where functional interfaces are developed in situ. A confocal Raman Microscopy study evidences unequivocally the appearance of a space charge layer at the Skutterudite/oxide interfaces characterized by a crystal lattice softening and a surprising enhanced Raman signal. The functional interfaces act as highly effective phonon scattering and trapping centers that highly reduce the thermal conductivity, while a high electrical conductivity is achieved by selective doping the Skutterudite phase. This approach leads to Figures of Merit ca. 1 for Te-doped CoSb3. This work opens up new possibilities for the facile, large scale synthesis of well performing thermoelectric materials for medium range temperatures applications.This work was supported by the European Projects “NEXTEC” FP7-NMP-201-1.2-3 and Thermo-Spintronic FP7-PEOPLE-2011-Marie Curie, CIG project N° 304043.A. M. and J. F. F. are grateful to MICINN project MAT2013-48009-C4-1-P for the financial support provided for this research. M.M.G. wants to acknowledge also the Infante project 201550E072. Dr. Alberto Moure is also indebted to MINECO for the “Ramón y Cajal” contract (Ref. RYC-2013–14436), which is co-financed with European Social Fund.Peer reviewedElsevierEuropean CommissionMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/181324reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/263167info:eu-repo/grantAgreement/EC/FP7/304043info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2013-48009-C4-1-Pinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RYC-2013–14436https://doi.org/10.1016/j.nanoen.2016.11.041Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1813242026-05-22T06:33:51Z
dc.title.none.fl_str_mv Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces
title Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces
spellingShingle Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces
Moure Arroyo, Alberto
Thermoelectric materials
Nanocomposite
Spark plasma sintering
Skutterudite
Functional interfaces
title_short Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces
title_full Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces
title_fullStr Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces
title_full_unstemmed Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces
title_sort Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces
dc.creator.none.fl_str_mv Moure Arroyo, Alberto
Rull Bravo, Marta
Abad Mayor, Begoña
Campo, Ángel Adolfo del
Muñoz Rojo, Miguel
Aguirre, Myriam H.
Jacquot, Alexandre
Fernández Lozano, José Francisco
Martín-González, Marisol
author Moure Arroyo, Alberto
author_facet Moure Arroyo, Alberto
Rull Bravo, Marta
Abad Mayor, Begoña
Campo, Ángel Adolfo del
Muñoz Rojo, Miguel
Aguirre, Myriam H.
Jacquot, Alexandre
Fernández Lozano, José Francisco
Martín-González, Marisol
author_role author
author2 Rull Bravo, Marta
Abad Mayor, Begoña
Campo, Ángel Adolfo del
Muñoz Rojo, Miguel
Aguirre, Myriam H.
Jacquot, Alexandre
Fernández Lozano, José Francisco
Martín-González, Marisol
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Thermoelectric materials
Nanocomposite
Spark plasma sintering
Skutterudite
Functional interfaces
topic Thermoelectric materials
Nanocomposite
Spark plasma sintering
Skutterudite
Functional interfaces
description Nanocomposites that combine percolated nano-CoSb3 semiconductors with isolated nano-oxide clusters are shown as an effective approach to decouple electrical and thermal conductivity in thermoelectric applications through the formation of functional interfaces. This type of decoupling is very important to increase the Figure of Merit (zT) of thermoelectrics and it is one of the greatest challenges searched by the community. We carry out an innovative synthesis of Skutterudite/oxide nanocomposites in air by high energy milling and sintering by Spark Plasma Sintering, where functional interfaces are developed in situ. A confocal Raman Microscopy study evidences unequivocally the appearance of a space charge layer at the Skutterudite/oxide interfaces characterized by a crystal lattice softening and a surprising enhanced Raman signal. The functional interfaces act as highly effective phonon scattering and trapping centers that highly reduce the thermal conductivity, while a high electrical conductivity is achieved by selective doping the Skutterudite phase. This approach leads to Figures of Merit ca. 1 for Te-doped CoSb3. This work opens up new possibilities for the facile, large scale synthesis of well performing thermoelectric materials for medium range temperatures applications.
publishDate 2017
dc.date.none.fl_str_mv 2017
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/181324
url http://hdl.handle.net/10261/181324
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7/263167
info:eu-repo/grantAgreement/EC/FP7/304043
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2013-48009-C4-1-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RYC-2013–14436
https://doi.org/10.1016/j.nanoen.2016.11.041
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411119029813248
score 15,811543

Similares en LA Referencia