Mixed-host engineering of blue thermally activated delayed fluorescence devices for enhanced efficiency and suppressed efficiency roll-off
DC Field | Value | Language |
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dc.contributor.author | Park, S.J. | - |
dc.contributor.author | Choi, K.W. | - |
dc.contributor.author | Park, Y.W. | - |
dc.contributor.author | Ju, B.-K. | - |
dc.date.accessioned | 2021-12-03T15:41:23Z | - |
dc.date.available | 2021-12-03T15:41:23Z | - |
dc.date.created | 2021-08-31 | - |
dc.date.issued | 2021-03 | - |
dc.identifier.issn | 0925-3467 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/129150 | - |
dc.description.abstract | Blue thermally activated delayed fluorescence (TADF) organic light-emitting diodes (OLEDs) with enhanced efficiency and suppressed efficiency roll-offs were fabricated using a mixed host consisting of 3,3-di(9H-carbazol-9-yl)-biphenyl (mCBP) and bis[2-(diphenyl-phosphino)phenyl]ether oxide (DPEPO). Notably, mCBP and DPEPO, which are generally used as hosts in blue TADF OLEDs, exhibit material stability and efficiency as their trade-off characteristics. The mixed-host structure, when applied to 10,10′-(4,4′-sulfonylbis(4,1-phenylene))bis(9,9-dimethyl-9,10-dihydroacridine), which is a blue TADF dopant, facilitated a maximum efficiency of 18.1%. Furthermore, the critical current density (J0), at which the external quantum efficiency decreases by half of its maximum value, was observed to be 3.9 times that of the DPEPO device. © 2021 Elsevier B.V. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Mixed-host engineering of blue thermally activated delayed fluorescence devices for enhanced efficiency and suppressed efficiency roll-off | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ju, B.-K. | - |
dc.identifier.doi | 10.1016/j.optmat.2021.110879 | - |
dc.identifier.scopusid | 2-s2.0-85100398668 | - |
dc.identifier.wosid | 000633029400001 | - |
dc.identifier.bibliographicCitation | Optical Materials, v.113 | - |
dc.relation.isPartOf | Optical Materials | - |
dc.citation.title | Optical Materials | - |
dc.citation.volume | 113 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.subject.keywordAuthor | Blue organic light-emitting diodes (OLEDs) | - |
dc.subject.keywordAuthor | Capacitance–voltage | - |
dc.subject.keywordAuthor | Mixed-host | - |
dc.subject.keywordAuthor | Recombination zone | - |
dc.subject.keywordAuthor | Thermally activated delayed fluorescence (TADF) | - |
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