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Silane- and triazine-containing hole and exciton blocking material for high-efficiency phosphorescent organic light emitting diodes

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dc.contributor.authorKang, Jae-Wook-
dc.contributor.authorLee, Deug-Sang-
dc.contributor.authorPark, Hyung-Dol-
dc.contributor.authorPark, Young-Seo-
dc.contributor.authorKim, Ji Whan-
dc.contributor.authorJeong, Won-Ik-
dc.contributor.authorYoo, Kyung-Mo-
dc.contributor.authorGo, Kyoungmoon-
dc.contributor.authorKim, Se-Hoon-
dc.contributor.authorKim, Jang-Joo-
dc.date.accessioned2009-08-12T05:48:06Z-
dc.date.available2009-08-12T05:48:06Z-
dc.date.issued2007-01-
dc.identifier.citationJ. Mater. Chem., 2007, 17, 3714en
dc.identifier.issn0959-9428-
dc.identifier.urihttps://hdl.handle.net/10371/7014-
dc.description.abstractOne of the important factors for high efficiency phosphorescent organic light-emitting devices is to confine triplet excitons within the emitting layer. We synthesized and characterized a new hole blocking material containing silane and triazine moieties, 2,4-diphenyl-6-(4-triphenylsilanyl-biphenyl-4-yl)-1,3,5-triazine (DTBT). Electrophosphorescent devices fabricated using the material as the hole-blocking layer and N,N-dicarbazolyl-4,4-biphenyl (CBP) doped with fac-tris(2-phenylpyridine)iridium [Ir(ppy)3] as the emitting layer showed a maximum external quantum efficiency (ext) of 17.5% with a maximum power efficiency (p) of 47.8 lm W–1, which are much higher than those of devices using bathcuproine (BCP) (ext = 14.5%, p = 40.0 lm W–1) and 4-biphenyloxolate aluminium(III) bis(2-methyl-8-quinolinato)-4-phenylphenolate (BAlq) (ext = 8.1%, p = 14.2 lm W–1) as hole-blocking layers.en
dc.description.sponsorshipThis work was supported by the Ministry of Commerce,
Industry and Energy through the OLED center and
Cavendish-KAIST Cooperation Program.
en
dc.language.isoen-
dc.publisherRoyal Society of Chemistryen
dc.titleSilane- and triazine-containing hole and exciton blocking material for high-efficiency phosphorescent organic light emitting diodesen
dc.typeArticleen
dc.contributor.AlternativeAuthor강재욱-
dc.contributor.AlternativeAuthor이등상-
dc.contributor.AlternativeAuthor박형돌-
dc.contributor.AlternativeAuthor박영서-
dc.contributor.AlternativeAuthor김지환-
dc.contributor.AlternativeAuthor정원익-
dc.contributor.AlternativeAuthor유경모-
dc.contributor.AlternativeAuthor고경문-
dc.contributor.AlternativeAuthor김세훈-
dc.contributor.AlternativeAuthor김장주-
dc.identifier.doi10.1039/b705741e-
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Materials Science and Engineering (재료공학부)Journal Papers (저널논문_재료공학부)
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