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Solubility study of Yb in n-type skutterudites YbxCo4Sb12 and their enhanced thermoelectric properties

dc.contributor.authorYang, J.
dc.contributor.authorHao, Qing
dc.contributor.authorWang, H.
dc.contributor.authorLan, Y. C.
dc.contributor.authorHe, Q. Y.
dc.contributor.authorMinnich, Austin Jerome
dc.contributor.authorWang, D. Z.
dc.contributor.authorHarriman, J. A.
dc.contributor.authorVarki, V. M.
dc.contributor.authorDresselhaus, Mildred
dc.contributor.authorChen, Gang
dc.contributor.authorRen, Z. F.
dc.date.accessioned2010-01-28T18:01:59Z
dc.date.available2010-01-28T18:01:59Z
dc.date.issued2009-09
dc.date.submitted2009-08
dc.identifier.issn1550-235X
dc.identifier.issn1098-0121
dc.identifier.urihttp://hdl.handle.net/1721.1/51009
dc.description.abstractThe solubility of Yb in Yb[subscript x]Co[subscript 4]Sb[subscript 12 was reported to be 0.19 in bulk skutterudites made by melting and slow cooling method. Surprisingly we increased x close to 0.5 by a special sample preparation method: ball mill and hot press. We show that a higher Yb concentration not only increases the power factor due to a higher electron concentration but also reduces the thermal conductivity k because of stronger phonon scattering. In this way, we have achieved a dimensionless thermoelectric figure of merit ZT of about 1.2 at 550 °C in Yb[subscript 0.35]Co[subscript 4]Sb[subscript 12].en
dc.description.sponsorshipDepartment of Energyen
dc.language.isoen_US
dc.publisherAmerican Physical Societyen
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevB.80.115329en
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en
dc.sourceAPSen
dc.titleSolubility study of Yb in n-type skutterudites YbxCo4Sb12 and their enhanced thermoelectric propertiesen
dc.typeArticleen
dc.identifier.citationYang, J. et al. “Solubility study of Yb in n -type skutterudites Ybx Co4 Sb12 and their enhanced thermoelectric properties.” Physical Review B 80.11 (2009): 115329. (C) 2010 The American Physical Society.en
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.approverDresselhaus, M. S.
dc.contributor.mitauthorHao, Qing
dc.contributor.mitauthorMinnich, Austin Jerome
dc.contributor.mitauthorDresselhaus, Mildred
dc.contributor.mitauthorChen, Gang
dc.relation.journalPhysical Review Ben
dc.eprint.versionFinal published versionen
dc.type.urihttp://purl.org/eprint/type/JournalArticleen
eprint.statushttp://purl.org/eprint/status/PeerRevieweden
eprint.grantNumberDE-FG02-08ER46516en
eprint.grantNumberDE-FG02-02ER45977en
eprint.grantNumberDEFG02- 00ER45805en
dspace.orderedauthorsYang, J.; Hao, Q.; Wang, H.; Lan, Y.; He, Q.; Minnich, A.; Wang, D.; Harriman, J.; Varki, V.; Dresselhaus, M.; Chen, G.; Ren, Z.en
dc.identifier.orcidhttps://orcid.org/0000-0001-8492-2261
dc.identifier.orcidhttps://orcid.org/0000-0002-3968-8530
mit.licensePUBLISHER_POLICYen
mit.metadata.statusComplete


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