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dc.contributor.author이태우-
dc.contributor.author박오옥-
dc.contributor.author조현남-
dc.contributor.author김영철-
dc.date.accessioned2015-12-02T05:19:53Z-
dc.date.available2015-12-02T05:19:53Z-
dc.date.issued200212-
dc.identifier.citationVOL 131, 129-133-
dc.identifier.issn0379-6779-
dc.identifier.other15768-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/15971-
dc.description.abstractWe report the realization of efficient and color-variable organic electroluminescent (EL) devices which employ the cascade energy transfer in a dye-doped ternary polymer blend. Fluorene-based light-emitting polymers, poly(2,7-bis(p-stiryl)-9,9′-di-n-hexylfluorene sebacate) (PBSDHFS) and poly(9,9′-di-n-hexylfluorenediylvinylene-alt-1,4-phenylenevinylene) (PDHFPPV), and a laser dye, DCM were used for this study. Förster excitation energy transfer in the PBSDHFS/PDHFPPV (98w/2w), PDHFPPV/DCM (98w/2w), PBSDHFS/DCM (98w/2w), and PBSDHFS/PDHFPPV/DCM (98w/2w/2w) blend played an essential role in achieving color-tunability as well as high efficiency due to the reduced self-absorption loss and concentration quenching. The EL device made of the PBSDHFS/PDHFPPV/DCM (98w/2w/2w) blend showed the highest EL quantum efficiency (QE). We attribute this result to an effective carrier trapping capability of DCM as well as the excitation energy transfer.-
dc.publisherSynthetic Metals-
dc.subjectdye-doped polymer light-emitting diodes (LEDs)-
dc.subjectMulticomponent polymer blends-
dc.subjectCascade energy transfer-
dc.titleCascade energy transfer in dye-doped trnary polymer blend light-emitting diodes.-
dc.typeArticle-
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