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dc.contributor.author김여진-
dc.contributor.author박상문-
dc.date.accessioned2015-12-03T01:20:23Z-
dc.date.available2015-12-03T01:20:23Z-
dc.date.issued201401-
dc.identifier.citationVOL 49, 469-474-
dc.identifier.issn00255408-
dc.identifier.other42699-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/48255-
dc.description.abstractNew single-phase and near-ultraviolet (NUV)-excitable materials composed of Ba9EumMnnY2Si6O24 (m = 0.01–0.5, n = 0–0.7) were prepared via a solid-state reaction in reducing atmosphere. X-ray diffraction patterns of the obtained phosphors were examined to index the peak positions. After doping the host structure with Eu2+ and Mn2+ emitters, the intense green, white, and orange emission lights that were observed in the photoluminescence spectra under NUV excitation were monitored. The dependence of the luminescent intensity of the Mn2+ co-doped (n = 0.1–0.7) host lattices on the fixed Eu2+ content (m = 0.1, 0.3, 0.5) is also investigated. Co-doping Mn2+ into the Eu2+-doped host structure enabled a high energy-transfer from Eu2+ to Mn2+ and their energy-transfer mechanism were discussed. Using these phosphors, the desired CIE values including emissions throughout the green to orange regions of the spectra were achieved. Efficient white-light light-emitting diodes (LEDs) were fabricated using Eu2+ and Mn2+ co-doped phosphors based on NUV-excitable LED lights.-
dc.publisherMaterials research bulletin-
dc.subjectOptical materials-
dc.subjectOrthosilicate-
dc.subjectX-ray diffraction-
dc.subjectLuminescence-
dc.subjectEnergy transfer-
dc.titleEu2+, Mn2+ co-doped Ba9Y2Si6O24 phosphors based on near-UV-excitable LED lights-
dc.typeArticle-
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