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DC Field | Value | Language |
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dc.citation.number | 9 | - |
dc.citation.startPage | 2202641 | - |
dc.citation.title | ADVANCED OPTICAL MATERIALS | - |
dc.citation.volume | 11 | - |
dc.contributor.author | Park, Ho-Yeol | - |
dc.contributor.author | Ameen, Shahid | - |
dc.contributor.author | Kumaresan, Raja | - |
dc.contributor.author | Lee, Jieun | - |
dc.contributor.author | Park, Jeonghyeon | - |
dc.contributor.author | Song, Donghyun | - |
dc.contributor.author | Lee, Jaemin | - |
dc.contributor.author | Heo, Yuchan | - |
dc.contributor.author | Kim, BongSoo | - |
dc.contributor.author | Jin, Sung-Ho | - |
dc.date.accessioned | 2023-12-21T12:40:29Z | - |
dc.date.available | 2023-12-21T12:40:29Z | - |
dc.date.created | 2023-04-18 | - |
dc.date.issued | 2023-05 | - |
dc.description.abstract | Two green heteroleptic Ir(III) complexes are reported, namely, bis[5-(2-ethylhexyl)-8-trifluoromethyl-5H-benzo[c][1,5]-naphthyridin-6-one](2-(5-phenyl-1,3,4-oxadiazol-2-yl)phenolate)iridium (III) (Ir(CF3BNO)(2)-pop) and bis[5-(2-ethylhexyl)-5H-benzo[c][1,5]naphthyridin-6-one](2-(5-phenyl-1,3,4-oxadiazol-2-yl)phenolate)iridium (III) (Ir(BNO)(2)-pop) for solution-processed phosphorescent organic light-emitting diodes (PHOLEDs). Both the Ir(III) complexes exhibit high external quantum efficiency (EQE) and intense green emission upon using poly(3,4-ethylenedioxythiophene):polystyrene sulfonic acid (PEDOT:PSS) as a hole injection layer (HIL); Ir(CF3BNO)(2)-pop based PHOLEDs perform better with an EQE of 23% and a current efficiency of 82 cd A(-1) than Ir(BNO)(2)-pop based PHOLEDs. In addition, to improve device operational lifetime, a crosslinkable HIL material, 9,9'-(cyclohexane-1,1-diylbis(4,1-phenylene))bis(N-phenyl-N-(4-(((4-vinylbenzyl)oxy)methyl)phenyl)-9H-carbazol-3-amine) (CPCzDPAX-1) is designed and synthesized. Device operational lifetimes of Ir(CF3BNO)(2)-pop and Ir(BNO)(2)-pop PHOLEDs incorporating the CPCzDPAX-1 HIL show 14-fold and 6-fold improvement, compared to the corresponding devices incorporating the PEDOT:PSS HIL. To the best of the authors' knowledge, this is the best device lifetime performance by using the combination of new Ir(III) complexes and HIL materials for solution-processed green PHOLEDs. | - |
dc.identifier.bibliographicCitation | ADVANCED OPTICAL MATERIALS, v.11, no.9, pp.2202641 | - |
dc.identifier.doi | 10.1002/adom.202202641 | - |
dc.identifier.issn | 2195-1071 | - |
dc.identifier.scopusid | 2-s2.0-85150774811 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/65206 | - |
dc.identifier.wosid | 000952193900001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Highly Efficient and Stable Green Phosphorescent Light-Emitting Diodes Based on Solution-Processable Ir(III) Complexes with Electron-Transporting Ancillary Ligands | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary; Optics | - |
dc.relation.journalResearchArea | Materials Science; Optics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | device stability | - |
dc.subject.keywordAuthor | green phosphorescent light-emitting diodes | - |
dc.subject.keywordAuthor | hole injection layer | - |
dc.subject.keywordAuthor | Ir(III) dopants | - |
dc.subject.keywordAuthor | solution-processed | - |
dc.subject.keywordAuthor | thermal crosslinking | - |
dc.subject.keywordPlus | IRIDIUM(III) COMPLEXES | - |
dc.subject.keywordPlus | ELECTROLUMINESCENCE | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
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