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Formation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivity

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dc.contributor.authorHasan, Syed Waqar-
dc.contributor.authorMun, Hyeona-
dc.contributor.authorKim, Sang Il-
dc.contributor.authorCho, Jung Young-
dc.contributor.authorRoh, Jong Wook-
dc.contributor.authorYang, Sangsun-
dc.contributor.authorChoi, Soon-Mok-
dc.contributor.authorLee, Kyu Hyoung-
dc.contributor.authorSung Wng Kim-
dc.date.available2015-04-20T07:21:36Z-
dc.date.created2014-08-11ko
dc.date.issued2013-11-
dc.identifier.issn1687-4110-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/1408-
dc.description.abstractWe herein report the electronic and thermal transport properties of p-type Bi0.5Sb1.5Te3 polycrystalline bulks with dense pore structure. Dense pore structure was fabricated by vaporization of residual Te during the pressureless annealing of spark plasma sintered bulks of Te coated Bi0.5Sb1.5Te3 powders. The lattice thermal conductivity was effectively reduced to the value of 0.35 W m-1 K-1 at 300 K mainly due to the phonon scattering by pores, while the power factor was not significantly affected. An enhanced ZT of 1.24 at 300 K was obtained in spark plasma sintered and annealed bulks of 3 wt.% Te coated Bi0.5Sb1.5Te3 by these synergetic effects. © 2013 Syed Waqar Hasan et al.-
dc.language영어-
dc.publisherHINDAWI PUBLISHING CORPORATION-
dc.titleFormation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivity-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000327202300001-
dc.identifier.scopusid2-s2.0-84888858062-
dc.identifier.rimsid478ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorSung Wng Kim-
dc.identifier.doi10.1155/2013/905389-
dc.identifier.bibliographicCitationJOURNAL OF NANOMATERIALS, v.2013, pp.905389-
dc.relation.isPartOfJOURNAL OF NANOMATERIALS-
dc.citation.titleJOURNAL OF NANOMATERIALS-
dc.citation.volume2013-
dc.citation.startPage905389-
dc.date.scptcdate2018-10-01-
dc.description.wostc3-
dc.description.scptc1-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalWebOfScienceCategoryNanoscience & Nanotechnology-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.subject.keywordPlusENHANCED THERMOELECTRIC PROPERTIES-
dc.subject.keywordPlusBISMUTH-ANTIMONY TELLURIDE-
dc.subject.keywordPlusNANOCOMPOSITES-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusBI2TE3-
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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