Yan, Ruijuan ; Xie, Wenjie ; Balke, Benjamin ; Chen, Guoxing ; Weidenkaff, Anke (2020):
Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution.
In: Science and Technology of Advanced Materials, 21 (1), pp. 122-130. Taylor & Francis, ISSN 1468-6996,
DOI: 10.25534/tuprints-00011570,
[Article]
Abstract
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, Nb0.95Sc0.05CoSn compound shows a maximum power factor of 0.54 mW/mK2 which is the highest among the previously reported values of p-type NbCoSn. With the suppression of thermal conductivity, p-type Nb0.95Sc0.05CoSn compound shows the highest measured figure of merit ZT = 0.13 at 879 K.
| Item Type: | Article |
|---|---|
| Erschienen: | 2020 |
| Creators: | Yan, Ruijuan ; Xie, Wenjie ; Balke, Benjamin ; Chen, Guoxing ; Weidenkaff, Anke |
| Origin: | Secondary publication via sponsored Golden Open Access |
| Title: | Realizing p-type NbCoSn half-Heusler compounds with enhanced thermoelectric performance via Sc substitution |
| Language: | English |
| Abstract: | 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, Nb0.95Sc0.05CoSn compound shows a maximum power factor of 0.54 mW/mK2 which is the highest among the previously reported values of p-type NbCoSn. With the suppression of thermal conductivity, p-type Nb0.95Sc0.05CoSn compound shows the highest measured figure of merit ZT = 0.13 at 879 K. |
| Journal or Publication Title: | Science and Technology of Advanced Materials |
| Journal Volume: | 21 |
| Issue Number: | 1 |
| Publisher: | Taylor & Francis |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science |
| Date Deposited: | 29 Mar 2020 19:56 |
| DOI: | 10.25534/tuprints-00011570 |
| URL / URN: | https://doi.org/10.1080/14686996.2020.1726715 |
| URN: | urn:nbn:de:tuda-tuprints-115700 |
| Corresponding Links: | |
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