5H-Benzo[d]Benzo[4,5]Imidazo[2,1-b][1,3]Thiazine as a Novel Electron-Acceptor Cored High Triplet Energy Bipolar Host Material for Efficient Solution-Processable Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Godumala, Mallesham | - |
dc.contributor.author | Yoon, Jiwon | - |
dc.contributor.author | Park, Seo Yeon | - |
dc.contributor.author | Lee, Chiho | - |
dc.contributor.author | Kim, Youngseo | - |
dc.contributor.author | Jeong, Ji-Eun | - |
dc.contributor.author | Park, Sungnam | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Cho, Min Ju | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.date.accessioned | 2021-08-31T10:36:37Z | - |
dc.date.available | 2021-08-31T10:36:37Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2020-02-07 | - |
dc.identifier.issn | 2296-2646 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/57682 | - |
dc.description.abstract | Organic entities that can transport electrons are seldom available to develop adequate bipolar host materials applicable for solution-processable thermally activated delayed fluorescence (TADF)-organic light-emitting diodes (OLEDs). Therefore, the introduction of new electron-affine entities that plausibly demonstrate high triplet energy (E-T) is of urgent need. In this contribution, we introduced benzimidazo[1,2-a][3,1]benzothiazine (BBIT) as a novel electron-affine entity and developed two new bipolar host materials, CzBBIT and 2CzBBIT. Both host materials exhibit high E-T of 3.0 eV, superior thermal robustness with the thermal decomposition temperature of up to 392 degrees C, a glass transition temperature of up to 161 degrees C, and high solubility in common organic solvents. Consequently, the solution-processable OLEDs fabricated using a recognized IAcTr-out as the green TADF emitter doped into CzBBIT as the host, realized a maximum external quantum efficiency (EQE) of 23.3%, while the 2CzBBIT:IAcTr-out blend film-based device displayed an EQE of 18.7%. These outcomes corroborated that this work could shed light on the scientific community on the design of new electron-affine entities to establish the effective use of bipolar host materials toward proficient solution-processable TADF-OLEDs. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | FRONTIERS MEDIA SA | - |
dc.subject | DESIGN STRATEGY | - |
dc.title | 5H-Benzo[d]Benzo[4,5]Imidazo[2,1-b][1,3]Thiazine as a Novel Electron-Acceptor Cored High Triplet Energy Bipolar Host Material for Efficient Solution-Processable Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Sungnam | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.contributor.affiliatedAuthor | Cho, Min Ju | - |
dc.contributor.affiliatedAuthor | Choi, Dong Hoon | - |
dc.identifier.doi | 10.3389/fchem.2020.00061 | - |
dc.identifier.scopusid | 2-s2.0-85079780085 | - |
dc.identifier.wosid | 000517197300001 | - |
dc.identifier.bibliographicCitation | FRONTIERS IN CHEMISTRY, v.8 | - |
dc.relation.isPartOf | FRONTIERS IN CHEMISTRY | - |
dc.citation.title | FRONTIERS IN CHEMISTRY | - |
dc.citation.volume | 8 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | DESIGN STRATEGY | - |
dc.subject.keywordAuthor | new electron-acceptor core | - |
dc.subject.keywordAuthor | bipolar hosts | - |
dc.subject.keywordAuthor | thermally activated delayed fluorescence | - |
dc.subject.keywordAuthor | solution process | - |
dc.subject.keywordAuthor | organic light emitting diodes | - |
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.