Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution

N-type half-Heusler NbCoSn is a promising thermoelectric material due to favourable electronic properties. It has attracted much attention for thermoelectric applications while the desired p-type NbCoSn counterpart shows poor thermoelectric performance. In this work, p-type NbCoSn has been obtained...

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Autores principales: Yan, Ruijuan, Xie, Wenjie, Balke, Benjamin, Chen, Guoxing, Weidenkaff, Anke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2020
Materias:
Focus on Thermoelectric Materials
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7054941/
https://www.ncbi.nlm.nih.gov/pubmed/32165991
http://dx.doi.org/10.1080/14686996.2020.1726715
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author Yan, Ruijuan
Xie, Wenjie
Balke, Benjamin
Chen, Guoxing
Weidenkaff, Anke
author_facet Yan, Ruijuan
Xie, Wenjie
Balke, Benjamin
Chen, Guoxing
Weidenkaff, Anke
author_sort Yan, Ruijuan
collection PubMed
description N-type half-Heusler NbCoSn is a promising thermoelectric material due to favourable electronic properties. It has attracted much attention for thermoelectric applications while the desired p-type NbCoSn counterpart shows poor thermoelectric performance. In this work, p-type NbCoSn has been obtained using Sc substitution at the Nb site, and their thermoelectric properties were investigated. Of all samples, Nb(0.95)Sc(0.05)CoSn compound shows a maximum power factor of 0.54 mW/mK(2) which is the highest among the previously reported values of p-type NbCoSn. With the suppression of thermal conductivity, p-type Nb(0.95)Sc(0.05)CoSn compound shows the highest measured figure of merit ZT = 0.13 at 879 K.
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spelling pubmed-70549412020-03-12 Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution Yan, Ruijuan Xie, Wenjie Balke, Benjamin Chen, Guoxing Weidenkaff, Anke Sci Technol Adv Mater Focus on Thermoelectric Materials N-type half-Heusler NbCoSn is a promising thermoelectric material due to favourable electronic properties. It has attracted much attention for thermoelectric applications while the desired p-type NbCoSn counterpart shows poor thermoelectric performance. In this work, p-type NbCoSn has been obtained using Sc substitution at the Nb site, and their thermoelectric properties were investigated. Of all samples, Nb(0.95)Sc(0.05)CoSn compound shows a maximum power factor of 0.54 mW/mK(2) which is the highest among the previously reported values of p-type NbCoSn. With the suppression of thermal conductivity, p-type Nb(0.95)Sc(0.05)CoSn compound shows the highest measured figure of merit ZT = 0.13 at 879 K. Taylor & Francis 2020-02-25 /pmc/articles/PMC7054941/ /pubmed/32165991 http://dx.doi.org/10.1080/14686996.2020.1726715 Text en © 2020 The Author(s). Published by National Institute for Materials Science in partnership with Taylor & Francis Group. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Focus on Thermoelectric Materials
Yan, Ruijuan
Xie, Wenjie
Balke, Benjamin
Chen, Guoxing
Weidenkaff, Anke
Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution
title Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution
title_full Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution
title_fullStr Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution
title_full_unstemmed Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution
title_short Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution
title_sort realizing p-type nbcosn half-heusler compounds with enhanced thermoelectric performance via sc substitution
topic Focus on Thermoelectric Materials
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7054941/
https://www.ncbi.nlm.nih.gov/pubmed/32165991
http://dx.doi.org/10.1080/14686996.2020.1726715
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