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DC Field | Value | Language |
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dc.citation.endPage | 2480 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 2474 | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 126 | - |
dc.contributor.author | Jin, SH | - |
dc.contributor.author | Kim, MY | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Lee, K | - |
dc.contributor.author | Gal, YS | - |
dc.date.accessioned | 2023-12-22T11:06:55Z | - |
dc.date.available | 2023-12-22T11:06:55Z | - |
dc.date.created | 2014-09-25 | - |
dc.date.issued | 2004-03 | - |
dc.description.abstract | yA new series of high brightness and luminance efficient poly(p-phenylenevinylene) (PPV)-based electroluminescent (EL) polymers, poly[2-{4-[5-(4-(3,7-dimethyloctyloxy)phenyl)-1,3,4-oxadiazole-2-yl]phenyloxyl-1,4-phenylenevinylene] (Oxa-PPV), poly[2-{2-((3,7-dimethyloctyl)oxy)phenoxyl-1,4-phenylenevinylene] (DMOP-PPV), and their corresponding random copolymers, poly{[2-14-[5-(4-(3,7-dimethyloctyloxy)phenyl)-1,3,4-oxadiazole-2-yl]phenyloxyl-1,4-phenylenevinylene]-co-[2-{2-((3,7-dimethyloctyl)oxy) phenoxyl},4-phenylenevinylene] (Oxa-PPV-co-DMOP-PPV), with an electron-deficient 1,3,4-oxadiazole unit on the side groups, were synthesized through the Gilch polymerization method. The newly designed and synthesized asymmetric molecular structures of Oxa-PPV, DMOP-PPV, and Oxa-PPV-co-DMOP-PPV were completely soluble in common organic solvents, and defect-free optical thin film was easily spin-coated onto the indium tin oxide (ITO) substrate. Oxa-PPV shows a high glass transition temperature (T-g), which might be an advantage for long time operation of polymer light-emitting diodes (PLEDs). Double-layer LEDs with an ITO/PEDOT/polymer/Al configuration were fabricated by using those polymers. Electrooptical properties and device performance could be adjusted by introducing the Oxa-PPV content in the copolymers. The emission colors could be tuned from green to yellowish-orange via intramolecular energy transfer. The improved device performance of Oxa-PPV over DMOP-PPV and Oxa-PPV-co-DMOP-PPV may be due to better electron injection and charge balance between holes and electrons and also efficient intramolecular energy transfer from 1,3,4-oxadiazole units to PPV backbones. The maximum brightness and the luminance efficiency of Oxa-PPV were up to 19395 cd/m(2) at 14 V and 21.1 cd/A at 5930 cd/m(2). The maximum luminance efficiency of Oxa-PPV is ranked the highest value among the PPV derivatives to date. | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.126, no.8, pp.2474 - 2480 | - |
dc.identifier.doi | 10.1021/ja036955 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.scopusid | 2-s2.0-1542366679 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6558 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=1542366679 | - |
dc.identifier.wosid | 000189279700055 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | High-efficiency poly(p-phenylenevinylene)-based copolymers containing an oxadiazole pendant group for light-emitting diodes | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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