Phosphorescent dye-based supramolecules for high-efficiency organic light-emitting diodes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Kwon-Hyeon | - |
dc.contributor.author | Lee, Sunghun | - |
dc.contributor.author | Moon, Chang-Ki | - |
dc.contributor.author | Kim, Sei-Yong | - |
dc.contributor.author | Park, Young-Seo | - |
dc.contributor.author | Lee, Jeong-Hwan | - |
dc.contributor.author | Lee, Jin Woo | - |
dc.contributor.author | Huh, June | - |
dc.contributor.author | You, Youngmin | - |
dc.contributor.author | Kim, Jang-Joo | - |
dc.date.accessioned | 2021-09-05T05:30:56Z | - |
dc.date.available | 2021-09-05T05:30:56Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-09 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/97449 | - |
dc.description.abstract | Organic light-emitting diodes (OLEDs) are among the most promising organic semiconductor devices. The recently reported external quantum efficiencies (EQEs) of 29-30% for green and blue phosphorescent OLEDs are considered to be near the limit for isotropically oriented iridium complexes. The preferred orientation of transition dipole moments has not been thoroughly considered for phosphorescent OLEDs because of the lack of an apparent driving force for a molecular arrangement in all but a few cases, even though horizontally oriented transition dipoles can result in efficiencies of over 30%. Here we use quantum chemical calculations to show that the preferred orientation of the transition dipole moments of heteroleptic iridium complexes (HICs) in OLEDs originates from the preferred direction of the HIC triplet transition dipole moments and the strong supramolecular arrangement within the co-host environment. We also demonstrate an unprecedentedly high EQE of 35.6% when using HICs with phosphorescent transition dipole moments oriented in the horizontal direction. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | EXTERNAL QUANTUM EFFICIENCY | - |
dc.subject | SPECTROSCOPIC ELLIPSOMETRY | - |
dc.subject | POLYATOMIC-MOLECULES | - |
dc.subject | DIPOLE ORIENTATION | - |
dc.subject | THIN-FILMS | - |
dc.subject | DEVICES | - |
dc.subject | EMISSION | - |
dc.subject | EMITTERS | - |
dc.subject | ELECTROLUMINESCENCE | - |
dc.subject | APPROXIMATION | - |
dc.title | Phosphorescent dye-based supramolecules for high-efficiency organic light-emitting diodes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Huh, June | - |
dc.identifier.doi | 10.1038/ncomms5769 | - |
dc.identifier.scopusid | 2-s2.0-84910061794 | - |
dc.identifier.wosid | 000342927700003 | - |
dc.identifier.bibliographicCitation | NATURE COMMUNICATIONS, v.5 | - |
dc.relation.isPartOf | NATURE COMMUNICATIONS | - |
dc.citation.title | NATURE COMMUNICATIONS | - |
dc.citation.volume | 5 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | EXTERNAL QUANTUM EFFICIENCY | - |
dc.subject.keywordPlus | SPECTROSCOPIC ELLIPSOMETRY | - |
dc.subject.keywordPlus | POLYATOMIC-MOLECULES | - |
dc.subject.keywordPlus | DIPOLE ORIENTATION | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | DEVICES | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | EMITTERS | - |
dc.subject.keywordPlus | ELECTROLUMINESCENCE | - |
dc.subject.keywordPlus | APPROXIMATION | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.