Effects of Ti Doping on TaFeSb Half-Heuslers Estimated by a Single Parabolic Band Model
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Hyunjin | - |
dc.contributor.author | Kim, Sang-il | - |
dc.contributor.author | Lee, Kiyoung | - |
dc.contributor.author | Seo, Won-Seon | - |
dc.contributor.author | Kim, Hyun-Sik | - |
dc.date.accessioned | 2024-04-16T02:32:09Z | - |
dc.date.available | 2024-04-16T02:32:09Z | - |
dc.date.issued | 2022-11-01 | - |
dc.identifier.issn | 2199-692X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/32959 | - |
dc.description.abstract | Recent discovery of new p-type Ta1-xTixFeSb-based half-Heusler thermoelectric alloy has drawn much attention due to its high thermoelectric performance, zT of similar to 1.52 near 970 K. However, the electronic band parameters of TaFeSb nor Ti-doped TaFeSb have not been studied so far. Here we report the band parameters of Ta1-xTixFeSb (x=0-0.16) calculated by the Single Parabolic Band model. Ti doping (x=0.12) both increases the density-of-states effective mass and non-degenerate mobility by 27 and 29 times compared to those of the pristine TaFeSb (x=0). This simultaneous increase results in weighted mobility improvement by a factor of 4000 with Ti doping of x=0.12. Based on the estimated weighted mobility and the lattice thermal conductivity, the 300 K zT of Ta0.88Ti0.12FeSb (x=0.12) can be further increased by 10% once the carrier concentration is appropriately tuned. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Effects of Ti Doping on TaFeSb Half-Heuslers Estimated by a Single Parabolic Band Model | - |
dc.type | Article | - |
dc.publisher.location | 독일 | - |
dc.identifier.doi | 10.1002/cnma.202200370 | - |
dc.identifier.scopusid | 2-s2.0-85138281821 | - |
dc.identifier.wosid | 000855025000001 | - |
dc.identifier.bibliographicCitation | CHEMNANOMAT, v.8, no.11 | - |
dc.citation.title | CHEMNANOMAT | - |
dc.citation.volume | 8 | - |
dc.citation.number | 11 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | THERMOELECTRIC PERFORMANCE | - |
dc.subject.keywordPlus | THERMAL-CONDUCTIVITY | - |
dc.subject.keywordPlus | FIGURE | - |
dc.subject.keywordPlus | PBSE | - |
dc.subject.keywordAuthor | half-Heusler | - |
dc.subject.keywordAuthor | TaFeNb | - |
dc.subject.keywordAuthor | density-of-states effective mass | - |
dc.subject.keywordAuthor | weighted mobility | - |
dc.subject.keywordAuthor | thermoelectric | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
94, Wausan-ro, Mapo-gu, Seoul, 04066, Korea02-320-1314
COPYRIGHT 2020 HONGIK UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.