Non-conventional exciplex system by leveraging zero-radius of intramolecular energy transfer mechanism: Seamless integration of p-host and fluorescent dopant for highly efficient OLEDs
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Song, You Na | - |
dc.contributor.author | Park, Bu Bae | - |
dc.contributor.author | Lee, Hakjun | - |
dc.contributor.author | Kang, Sunwoo | - |
dc.contributor.author | Hong, Wan Pyo | - |
dc.contributor.author | Oh, Hyoung Yun | - |
dc.contributor.author | Kim, Taekyung | - |
dc.date.accessioned | 2024-07-15T06:30:24Z | - |
dc.date.available | 2024-07-15T06:30:24Z | - |
dc.date.issued | 2024-07-15 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.issn | 1873-3212 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/33351 | - |
dc.description.abstract | A multi-component emissive layer (EML) composed of a mixture of p- and n -type hosts and a dopant is a widely used structure in organic light-emitting diodes (OLEDs) due to its high efficiency and operational stability. However, multi-component EML devices impose limitations such as difficulty in accurately controlling the mixing ratio and profiles in the manufacturing process, high costs, and complexity in the photophysical properties of the components. In this paper, a p -type host fused with a blue fluorescent dopant, 5,9-di([1,1 ' -biphenyl]-2-yl)-2 ' -(9H-carbazole- 9-yl)3,7-dimethyl-5,5a,5a1,9,9a,16a-hexahydrospiro[5,9-diaza-16b-boraindeno[2,1-b]naphtho[1,2,3-fg]anthracene-11,9 ' -fluorene] (DABNA-Spiro-Cz), was designed and successfully synthesized to construct a novel EML structure. Completely fused within DABNA-Spiro-Cz, the p -type host and blue fluorescent dopant can independently perform their respective roles. An exciplex is formed between n -type host and p -type host unit in the DABNA-Spiro-Cz molecule and its energy is effectively transferred to the blue fluorescent dopant unit in DABNASpiro-Cz. In other words, a degree of freedom is earned from a conventional 3 -component exciplex-dopant system. A high external quantum efficiency of 14.9 % was achieved thanks to " z ero -radius of intramolecular e nergy t ransfer in exci plex (ZETPLEX) " system, which is completely non-conventional and novel. We believe the ZETPLEX mechanism opens a new era of designing emissive materials and paves a new way of constructing a novel EML and device architecture for highly efficient OLEDs. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Non-conventional exciplex system by leveraging zero-radius of intramolecular energy transfer mechanism: Seamless integration of p-host and fluorescent dopant for highly efficient OLEDs | - |
dc.type | Article | - |
dc.publisher.location | 스위스 | - |
dc.identifier.doi | 10.1016/j.cej.2024.152371 | - |
dc.identifier.scopusid | 2-s2.0-85193629712 | - |
dc.identifier.wosid | 001244700500001 | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.492 | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 492 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | ELECTROLUMINESCENCE | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordAuthor | Organic light-emitting diodes | - |
dc.subject.keywordAuthor | Blue fluorescent | - |
dc.subject.keywordAuthor | Fused emitter | - |
dc.subject.keywordAuthor | Zero radius of intramolecular energy transfer | - |
dc.subject.keywordAuthor | mechanism | - |
dc.subject.keywordAuthor | ZETPLEX | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
94, Wausan-ro, Mapo-gu, Seoul, 04066, Korea02-320-1314
COPYRIGHT 2020 HONGIK 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.