Enhancement of Bi2O2Se thermoelectric power factor via Nb doping
DC Field | Value | Language |
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dc.contributor.author | Kim, Minsu | - |
dc.contributor.author | Park, Dabin | - |
dc.contributor.author | Kim, Jooheon | - |
dc.date.accessioned | 2022-01-14T02:40:30Z | - |
dc.date.available | 2022-01-14T02:40:30Z | - |
dc.date.issued | 2021-01 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.issn | 1873-4669 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/53546 | - |
dc.description.abstract | Bi2O2Se is a promising thermoelectric material, but in its pristine form, its low carrier concentrations (∼1015 cm−3) induce low electrical conductivity and thermoelectric performance. To increase its electrical conductivity, substitution of Nb5+ ions for Bi3+ ions was carried out. Pure and Nb-doped Bi2O2Se were synthesized by solid-state reactions, and XRD analysis, XPS spectra, and FE-SEM were used to verify the synthesis of Bi2-xNbxO2Se. The electrical conductivity, σ, and Seebeck coefficient, S, were used to quantify the thermoelectric performance. As the niobium content increased, the electrical conductivity enhanced, whereas the Seebeck coefficient declined. A maximum power factor value of 7 μW cm−1•K−2 at 473 K was achieved for Bi1.9Nb0.1O2Se, which is ∼2.6 times that of pure Bi2O2Se at the same temperature. © 2020 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier Ltd | - |
dc.title | Enhancement of Bi2O2Se thermoelectric power factor via Nb doping | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jallcom.2020.156905 | - |
dc.identifier.bibliographicCitation | Journal of Alloys and Compounds, v.851 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000579868900115 | - |
dc.identifier.scopusid | 2-s2.0-85090024372 | - |
dc.citation.title | Journal of Alloys and Compounds | - |
dc.citation.volume | 851 | - |
dc.type.docType | Article | - |
dc.publisher.location | 스위스 | - |
dc.subject.keywordAuthor | Bismuth oxyselenide | - |
dc.subject.keywordAuthor | Ceramics | - |
dc.subject.keywordAuthor | Thermoelectric materials | - |
dc.subject.keywordPlus | Carrier concentration | - |
dc.subject.keywordPlus | Electric conductivity | - |
dc.subject.keywordPlus | Electric power factor | - |
dc.subject.keywordPlus | Niobium | - |
dc.subject.keywordPlus | Niobium metallography | - |
dc.subject.keywordPlus | Seebeck coefficient | - |
dc.subject.keywordPlus | Selenium compounds | - |
dc.subject.keywordPlus | Solid state reactions | - |
dc.subject.keywordPlus | Thermoelectric power | - |
dc.subject.keywordPlus | Thermoelectricity | - |
dc.subject.keywordPlus | Electrical conductivity | - |
dc.subject.keywordPlus | Maximum power factor | - |
dc.subject.keywordPlus | Niobium content | - |
dc.subject.keywordPlus | Thermo-Electric materials | - |
dc.subject.keywordPlus | Thermoelectric performance | - |
dc.subject.keywordPlus | Thermoelectric power factors | - |
dc.subject.keywordPlus | XPS spectra | - |
dc.subject.keywordPlus | XRD analysis | - |
dc.subject.keywordPlus | Bismuth compounds | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.description.journalRegisteredClass | scopus | - |
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