Show simple item record

dc.contributor.authorZhu, G. H.
dc.contributor.authorLan, Y. C.
dc.contributor.authorWang, H.
dc.contributor.authorJoshi, G.
dc.contributor.authorHao, Qing
dc.contributor.authorChen, Gang
dc.contributor.authorRen, Z. F.
dc.date.accessioned2011-09-28T16:48:13Z
dc.date.available2011-09-28T16:48:13Z
dc.date.issued2011-03
dc.date.submitted2010-11
dc.identifier.issn1098-0121
dc.identifier.issn1550-235X
dc.identifier.urihttp://hdl.handle.net/1721.1/66097
dc.description.abstractThermoelectric properties of dense bulk polycrystalline In4Se3−x [In subscript 4 Se subscript 3-x] (x = 0, 0.25, 0.5, 0.65, and 0.8) compounds are investigated. A peak dimensionless thermoelectric figure of merit (ZT) of about 1 is achieved for x = 0.65 and 0.8. The peak ZT is about 50% higher than the previously reported highest value for polycrystalline In4Se3−x [In subscript 4 Se subscript 3-x] compounds. Our In4Se3−x [In subscript 4 Se subscript 3-x] samples were prepared by ball milling and hot pressing.We show that it is possible to effectively control the electrical conductivity and thermal conductivity by controlling selenium (Se) deficiency x. The ZT enhancement is mainly attributed to the thermal conductivity reduction due to the increased phonon scattering by Se deficiency, defects, and nanoscale inclusions in the ball-milled and hot-pressed dense bulk In4Se3−x [In subscript 4 Se subscript 3-x] samples.en_US
dc.description.sponsorshipUnited States. Dept. of Energy (Contract no. DOE DE-FG02-00ER45805)en_US
dc.description.sponsorshipSolid-State Solar-Thermal Energy Conversion Centeren_US
dc.description.sponsorshipUnited States. Dept. of Energy. Office of Basic Energy Sciences (Award No. DE-SC0001299)en_US
dc.language.isoen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevB.83.115201en_US
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_US
dc.sourceAPSen_US
dc.titleEffect of selenium deficiency on the thermoelectric properties of n-type In4Se3-x [In subscript 4 Se subscript 3-x] compoundsen_US
dc.typeArticleen_US
dc.identifier.citationZhu, G. et al. “Effect of selenium deficiency on the thermoelectric properties of n-type In_{4}Se_{3-x} compounds.” Physical Review B 83, 115201 (2011): n. pag. © 2011 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.approverChen, Gang
dc.contributor.mitauthorHao, Qing
dc.contributor.mitauthorChen, Gang
dc.relation.journalPhysical review Ben_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsZhu, G.; Lan, Y.; Wang, H.; Joshi, G.; Hao, Q.; Chen, G.; Ren, Z.en
dc.identifier.orcidhttps://orcid.org/0000-0002-3968-8530
mit.licensePUBLISHER_POLICYen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record