DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jung Kyu | ko |
dc.contributor.author | Lee, Dong-Hyun | ko |
dc.contributor.author | Wang, Dong Hwan | ko |
dc.contributor.author | Cho, Sung M. | ko |
dc.contributor.author | Lee, Jun Young | ko |
dc.contributor.author | Park, Jong Hyeok | ko |
dc.date.accessioned | 2013-03-11T22:07:28Z | - |
dc.date.available | 2013-03-11T22:07:28Z | - |
dc.date.created | 2012-05-22 | - |
dc.date.created | 2012-05-22 | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | JOURNAL OF LUMINESCENCE, v.132, no.3, pp.870 - 874 | - |
dc.identifier.issn | 0022-2313 | - |
dc.identifier.uri | http://hdl.handle.net/10203/100450 | - |
dc.description.abstract | This study investigates enhanced electrophosphorescence and its mechanism in poly(N-vinyl carbazole) (PVK): N,N'-diphenyl-N,N'-bis(3-methylphenyl)-[1,1-biphenyl]-4,4'-diamine (TPD)/2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole (POD): fac-tris(2-phenylpyridine)iridium [Ir(ppy)(3)] concentration graded bilayer electroluminescence devices. The two layers are partially intermixed at the bilayer interface because the upper layer (composed of Ir(ppy)3 and PBD) was spun cast from a solvent that slightly swells the bottom layer (composed of PVK and TPD). Moreover, POD in the upper layer can act as an efficient electron transport layer as well as a hole blocking layer, resulting in greatly enhanced electron-hole recombination. An indium tin oxide (ITO)/3,4-polyethylenedioxythiophene-Polystyrenesulfonate (PEDOT)/[PVK:TPD/Ir(ppy)(3):PBD] bilayer/LiF/Al device showed dramatically decreased turn-on and driving voltages, enhanced luminescence efficiency, and narrower emission spectra compared to those of conventional ITO/PEDOT:PSS/[PVK:TPD:Ir(ppy)(3):PBD] blend/LiF/AL devices. (C) 2011 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | LIGHT-EMITTING-DIODES | - |
dc.subject | PHOSPHORESCENT IRIDIUM COMPLEX | - |
dc.subject | CONJUGATED POLYMERS | - |
dc.subject | TRIPLET EXCITONS | - |
dc.subject | ELECTROLUMINESCENCE | - |
dc.subject | SINGLET | - |
dc.subject | ENERGY | - |
dc.subject | LAYERS | - |
dc.title | Efficient and low potential operative host/guest concentration graded bilayer polymer electrophosphorescence devices | - |
dc.type | Article | - |
dc.identifier.wosid | 000303286100052 | - |
dc.identifier.scopusid | 2-s2.0-83155191104 | - |
dc.type.rims | ART | - |
dc.citation.volume | 132 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 870 | - |
dc.citation.endingpage | 874 | - |
dc.citation.publicationname | JOURNAL OF LUMINESCENCE | - |
dc.identifier.doi | 10.1016/j.jlumin.2011.09.048 | - |
dc.contributor.nonIdAuthor | Kim, Jung Kyu | - |
dc.contributor.nonIdAuthor | Lee, Dong-Hyun | - |
dc.contributor.nonIdAuthor | Cho, Sung M. | - |
dc.contributor.nonIdAuthor | Lee, Jun Young | - |
dc.contributor.nonIdAuthor | Park, Jong Hyeok | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Electroluminescence | - |
dc.subject.keywordAuthor | Electrophosphorescence | - |
dc.subject.keywordAuthor | Bilayer | - |
dc.subject.keywordAuthor | Light-emitting diodes | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | PHOSPHORESCENT IRIDIUM COMPLEX | - |
dc.subject.keywordPlus | CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | TRIPLET EXCITONS | - |
dc.subject.keywordPlus | ELECTROLUMINESCENCE | - |
dc.subject.keywordPlus | SINGLET | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | LAYERS | - |
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