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dc.contributor.authorPark, Sangmoon-
dc.contributor.authorYang, Wonseok-
dc.contributor.authorPark, Chu-Young-
dc.contributor.authorNoh, Minhee-
dc.contributor.authorChoi, Seulki-
dc.contributor.authorPark, Dahye-
dc.contributor.authorJang, Ho Seong-
dc.contributor.authorCho, So-Hye-
dc.date.accessioned2024-01-20T05:34:36Z-
dc.date.available2024-01-20T05:34:36Z-
dc.date.created2021-09-05-
dc.date.issued2015-11-
dc.identifier.issn0025-5408-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/124814-
dc.description.abstractOptical materials composed of a Y6(1-p-q)Er6pYb6qO5F8 (p = 0.001-0.1, q = 0.005-0.1)solid solution with Y0.99Er0.01OF were prepared via a solid-state reaction using excess NH4F flux at 950 degrees C for 30 min. X-ray diffraction patterns of Y6(1-p-q)Er6pYb6qO5F8 and Y0.66Er0.01OF were compared upon altering the synthesis temperature and the molar ratio of the NH4F flux to the Y3+ (Er3+, Yb3+) ions. The effective spectral-conversion properties of Er3+ and Er3+-Yb3+ ions in Y6O5F8 phosphors were monitored during excitation with a 980 nm wavelength diode-laser. Selection of appropriate Er3+ and/or Yb3+ concentrations in the Y6O5F8 structure led to achievement of the desired up-conversion emission, from the green to the red regions of the spectra. Furthermore, the mechanism of up-conversion in the phosphors was described by an energy-level schematic. Up-conversion emission spectra and the dependence of the emission intensity on pump power (between 193 and 310 mW) in the Y6(0.995-q)Er0.03Yb6qO5F8 phosphors were also investigated. (C) 2015 Elsevier Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectOXYFLUORIDE-
dc.subjectEMISSION-
dc.subjectLASER-
dc.subjectER3+-
dc.titleUp-conversion routines of Er3+-Yb3+ doped Y6O5F8 and YOF phosphors-
dc.typeArticle-
dc.identifier.doi10.1016/j.materresbull.2015.06.031-
dc.description.journalClass1-
dc.identifier.bibliographicCitationMATERIALS RESEARCH BULLETIN, v.71, pp.25 - 29-
dc.citation.titleMATERIALS RESEARCH BULLETIN-
dc.citation.volume71-
dc.citation.startPage25-
dc.citation.endPage29-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000361254300006-
dc.identifier.scopusid2-s2.0-84937041633-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalResearchAreaMaterials Science-
dc.type.docTypeArticle-
dc.subject.keywordPlusOXYFLUORIDE-
dc.subject.keywordPlusEMISSION-
dc.subject.keywordPlusLASER-
dc.subject.keywordPlusER3+-
dc.subject.keywordAuthorOptical materials-
dc.subject.keywordAuthorFluorides-
dc.subject.keywordAuthorX-ray diffraction-
dc.subject.keywordAuthorPhosphors-
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