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나노 구조 물리 연구단
나노구조물리 연구단
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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 Waqarko
dc.contributor.authorMun, Hyeonako
dc.contributor.authorKim, Sang Ilko
dc.contributor.authorCho, Jung Youngko
dc.contributor.authorRoh, Jong Wookko
dc.contributor.authorYang, Sangsunko
dc.contributor.authorChoi, Soon-Mokko
dc.contributor.authorLee, Kyu Hyoungko
dc.contributor.authorSung Wng Kimko
dc.date.available2015-04-20T07:21:36Z-
dc.date.created2014-08-11ko
dc.date.issued2013ko
dc.identifier.issn1687-4110ko
dc.identifier.urihttp://pr.ibs.re.kr/handle/8788114/1408ko
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.ko
dc.languageENGko
dc.publisherHINDAWI PUBLISHING CORPORATIONko
dc.titleFormation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivityko
dc.typeARTICLEko
dc.type.rimsAko
dc.identifier.wosid000327202300001ko
dc.identifier.scopusid2-s2.0-84888858062ko
dc.identifier.pid342null
dc.description.wostc3-
dc.date.scptcdate2018-10-01-
dc.subject.keywordElectronic and thermal transports-
dc.subject.keywordLattice thermal conductivity-
dc.subject.keywordPoly-crystalline bulk-
dc.subject.keywordPower factors-
dc.subject.keywordPressureless-
dc.subject.keywordSintered bulk-
dc.subject.keywordSpark plasma-
dc.subject.keywordSynergetic effect-
dc.subject.keywordCrystal lattices-
dc.subject.keywordElectric power factor-
dc.subject.keywordElectric sparks-
dc.subject.keywordSintering-
dc.subject.keywordTransport properties-
dc.subject.keywordPore structure-
dc.identifier.doi10.1155/2013/905389ko
dc.identifier.bibliographicCitationJOURNAL OF NANOMATERIALS, v.2013, no., pp.905389 -ko
dc.date.tcdate2018-10-01-
dc.description.scptc1-
dc.type.docTypeArticle-
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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