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dc.contributor.authorGibbs, Zachary M.-
dc.contributor.authorKim, Hyoungchul-
dc.contributor.authorWang, Heng-
dc.contributor.authorWhite, Robert L.-
dc.contributor.authorDrymiotis, Fivos-
dc.contributor.authorKaviany, Massoud-
dc.contributor.authorSnyder, G. Jeffrey-
dc.date.accessioned2024-01-20T11:00:49Z-
dc.date.available2024-01-20T11:00:49Z-
dc.date.created2021-09-05-
dc.date.issued2013-12-23-
dc.identifier.issn0003-6951-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/127319-
dc.description.abstractPbTe is an important thermoelectric material for power generation applications due its high conversion efficiency and reliability. Its extraordinary thermoelectric performance is attributed to band convergence of the light L and heavy Sigma bands. However, the temperature at which these bands converge is disputed. In this letter, we provide direct experimental evidence combined with ab initio calculations that confirm an increasing optical gap up to 673K and predict a band convergence temperature of 700K, much higher than previous measurements showing saturation and band convergence at 450K. (C) 2013 AIP Publishing LLC.-
dc.languageEnglish-
dc.publisherAMER INST PHYSICS-
dc.subjectPERFORMANCE BULK THERMOELECTRICS-
dc.subjectP-TYPE PBTE-
dc.subjectLEAD TELLURIDE-
dc.subjectVALENCE BAND-
dc.subjectOPTICAL PROPERTIES-
dc.subjectABSORPTION-COEFFICIENT-
dc.subjectELECTRONIC PROPERTIES-
dc.subjectENERGY-GAP-
dc.subjectPBSE-
dc.titleTemperature dependent band gap in PbX ( X = S, Se, Te)-
dc.typeArticle-
dc.identifier.doi10.1063/1.4858195-
dc.description.journalClass1-
dc.identifier.bibliographicCitationAPPLIED PHYSICS LETTERS, v.103, no.26-
dc.citation.titleAPPLIED PHYSICS LETTERS-
dc.citation.volume103-
dc.citation.number26-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000329977400036-
dc.identifier.scopusid2-s2.0-84891605745-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.relation.journalResearchAreaPhysics-
dc.type.docTypeArticle-
dc.subject.keywordPlusPERFORMANCE BULK THERMOELECTRICS-
dc.subject.keywordPlusP-TYPE PBTE-
dc.subject.keywordPlusLEAD TELLURIDE-
dc.subject.keywordPlusVALENCE BAND-
dc.subject.keywordPlusOPTICAL PROPERTIES-
dc.subject.keywordPlusABSORPTION-COEFFICIENT-
dc.subject.keywordPlusELECTRONIC PROPERTIES-
dc.subject.keywordPlusENERGY-GAP-
dc.subject.keywordPlusPBSE-
dc.subject.keywordAuthorChalcogenide-
dc.subject.keywordAuthorSemiconductor-
dc.subject.keywordAuthorThermoelectrics-
dc.subject.keywordAuthorBand gap-
dc.subject.keywordAuthorSolid-state physics-
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