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Color tunability and white light generation through up-conversion energy transfer in Yb3+ sensitized Ho3+/Tm3+ doped tellurite glasses

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dc.contributor.authorVahedigharehchopogh, N.
dc.contributor.authorKibrisli, O.
dc.contributor.authorErsundu, A. E.
dc.contributor.authorErsundu, M. Celikbilek
dc.date.accessioned2026-06-27T14:17:25Z
dc.date.issued2019
dc.description.abstractIn this study, tellurite glasses in the (50-x)TeO2-25WO(3)-25Li(2)O-xRE (RE: Ho3+, Tm3+, Yb3+) system were synthesized to investigate white light generation through up-conversion energy transfer. Thermal properties of glasses were studied, and optical absorption spectra were collected. Energy transfer mechanisms between RE ions and effect of RE concentrations on up-conversion emission and color tunability were investigated through photoluminescence analysis under 980 nm excitation. Additionally, effect of excitation power on up-conversion emission intensities were investigated. Colorimetric properties such as CIE color coordinates, correlated color temperature, color rendering index and color purity were calculated. The obtained colorimetric results under 2 watt pump power were comparable or better than other reported glass systems. H005T025Y2 sample was found to show the closest color coordinates (x = 0.32 and y = 0.33) to pure white light and suitable colorimetric properties indicating that studied glasses have high potentiality to be used as luminescent materials for white light generation.en
dc.description.sponsorshipScientific AMP
dc.description.sponsorshipTechnological Research Council of Turkey (TUBITAK) [117M206]
dc.description.urihttps://doi.org/10.1016/j.jnoncrysol.2019.119679
dc.identifier.doi10.1016/j.jnoncrysol.2019.119679
dc.identifier.eissn1873-4812
dc.identifier.issn0022-3093
dc.identifier.urihttps://hdl.handle.net/20.500.14981/58863
dc.identifier.volume525
dc.identifier.wos000502889900029
dc.language.isoeng
dc.publisherELSEVIER
dc.relation.ispartofJOURNAL OF NON-CRYSTALLINE SOLIDS
dc.subjectHo3+
dc.subjectTm3+ and Yb3+ ions
dc.subjectTellurite glass
dc.subjectWhite light
dc.subjectPhotoluminescence
dc.subjectUp-conversion
dc.subjectLUMINESCENCE
dc.subjectEMISSION
dc.subjectTM3+
dc.subjectGREEN
dc.subjectIONS
dc.subjectBLUE
dc.subjectER3+
dc.subjectRED
dc.subjectSIMULATION
dc.subjectMaterials Science
dc.titleColor tunability and white light generation through up-conversion energy transfer in Yb3+ sensitized Ho3+/Tm3+ doped tellurite glasses
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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