DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Jun-Ha | ko |
dc.contributor.author | Koh, Tae-Wook | ko |
dc.contributor.author | Chung, Jin | ko |
dc.contributor.author | Park, Sung-Hoon | ko |
dc.contributor.author | Eo, Maeng-Sun | ko |
dc.contributor.author | Do, Young-Kyu | ko |
dc.contributor.author | Yoo, Seung-Hyup | ko |
dc.contributor.author | Lee, Min-Hyung | ko |
dc.date.accessioned | 2013-08-08T05:45:14Z | - |
dc.date.available | 2013-08-08T05:45:14Z | - |
dc.date.created | 2013-03-18 | - |
dc.date.created | 2013-03-18 | - |
dc.date.issued | 2013-02 | - |
dc.identifier.citation | MACROMOLECULES, v.46, no.3, pp.674 - 682 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | http://hdl.handle.net/10203/174580 | - |
dc.description.abstract | Vinyl addition copolymerization of norbornene monomers using a Pd(II) catalyst in combination with 1-octene chain transfer agent efficiently produces well-defined soluble polynorbornene copolymers bearing side-chain (C boolean AND N)(2)Ir(O boolean AND O) emitters (C boolean AND N = 2-(4,6-difluorophenyl)-pyridine (M-3); 2-phenyl-pyridine (M-4); 2-(benzo[b]-thiophen-2-yl)-pyridine (M-5), O boolean AND O = acetylacetonato) and 9,9 '-(1,3-phenylene)bis-9H-carbazole (mCP) or 9,9 '-(1,1 '-biphenyl)-4,4 '-diylbis-9H-carbazole (CBP) host moieties (M-1 and M-2). The catalytic system provides high-molecular-weight copolymers (M-w = 151 000-457 000 g/mol) with a controlled incorporation of monomers. All copolymers possess high thermal stability with high decomposition (T-d5 > 400 degrees C) and glass transition temperatures (T-g > 330 degrees C). Among the solution-processed devices fabricated based on a single emissive layer comprising the blue-, green-, and red-phosphorescent copolymers (PBn, PGn, and PRn, n = 1-4) with various concentrations of emitters (1.7-13.9 mol %-Ir), the devices based on PB4 (10.5 mol %-Ir), PG2 (5.3 mol %-Ir), and PR4 (13.9 mol %-Ir) display the best performances with maximum power efficiencies of 12.9, 25.6, and 3.3 lm/W and maximum external quantum efficiencies of 8.8, 13.3, and 5.1%, respectively, for each color. These results correspond to almost double the efficiencies of the corresponding doped polymer systems and are outstanding among the polymeric rivals reported thus far. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | LIGHT-EMITTING-DIODES | - |
dc.subject | ORGANIC ELECTROLUMINESCENT DEVICES | - |
dc.subject | ENERGY-TRANSFER | - |
dc.subject | TRIPLET ENERGY | - |
dc.subject | BLUE ELECTROPHOSPHORESCENCE | - |
dc.subject | PHOSPHORESCENT EMISSION | - |
dc.subject | CONJUGATED POLYMERS | - |
dc.subject | COMPLEXES | - |
dc.subject | POLYMERIZATION | - |
dc.subject | NORBORNENE | - |
dc.title | Polynorbornene Copolymer with Side-Chain Iridium(III) Emitters and Carbazole Hosts: A Single Emissive Layer Material for Highly Efficient Electrophosphorescent Devices | - |
dc.type | Article | - |
dc.identifier.wosid | 000315018400013 | - |
dc.identifier.scopusid | 2-s2.0-84873687355 | - |
dc.type.rims | ART | - |
dc.citation.volume | 46 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 674 | - |
dc.citation.endingpage | 682 | - |
dc.citation.publicationname | MACROMOLECULES | - |
dc.identifier.doi | 10.1021/ma302342p | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Do, Young-Kyu | - |
dc.contributor.localauthor | Yoo, Seung-Hyup | - |
dc.contributor.nonIdAuthor | Park, Jun-Ha | - |
dc.contributor.nonIdAuthor | Chung, Jin | - |
dc.contributor.nonIdAuthor | Park, Sung-Hoon | - |
dc.contributor.nonIdAuthor | Lee, Min-Hyung | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | ORGANIC ELECTROLUMINESCENT DEVICES | - |
dc.subject.keywordPlus | ENERGY-TRANSFER | - |
dc.subject.keywordPlus | TRIPLET ENERGY | - |
dc.subject.keywordPlus | BLUE ELECTROPHOSPHORESCENCE | - |
dc.subject.keywordPlus | PHOSPHORESCENT EMISSION | - |
dc.subject.keywordPlus | CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | COMPLEXES | - |
dc.subject.keywordPlus | POLYMERIZATION | - |
dc.subject.keywordPlus | NORBORNENE | - |
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