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High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off

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dc.contributor.authorKim, Jong Uk
dc.contributor.authorWong, Michael Y.
dc.contributor.authorKumar, Shiv
dc.contributor.authorHayes, Oliver
dc.contributor.authorDuncan, Finlay
dc.contributor.authorChan, Chin-Yiu
dc.contributor.authorWong, Ben Yiu-Wing
dc.contributor.authorYe, Hao
dc.contributor.authorCui, Lin-Song
dc.contributor.authorNakanotani, Hajime
dc.contributor.authorZysman-Colman, Eli
dc.contributor.authorAdachi, Chihaya
dc.date.accessioned2019-10-01T16:30:01Z
dc.date.available2019-10-01T16:30:01Z
dc.date.issued2019-10
dc.identifier259378381
dc.identifier95b51d91-6471-4581-bf32-4d851820a6aa
dc.identifier85072545498
dc.identifier000487252500007
dc.identifier.citationKim , J U , Wong , M Y , Kumar , S , Hayes , O , Duncan , F , Chan , C-Y , Wong , B Y-W , Ye , H , Cui , L-S , Nakanotani , H , Zysman-Colman , E & Adachi , C 2019 , ' High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off ' , Chemistry Letters , vol. 48 , no. 10 , pp. 1225-1228 . https://doi.org/10.1246/cl.190412en
dc.identifier.issn0366-7022
dc.identifier.otherORCID: /0000-0001-7183-6022/work/62668451
dc.identifier.urihttps://hdl.handle.net/10023/18594
dc.descriptionThis work was supported by a grant fund from the Regional Innovation Eco-System Program sponsored by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan, JST ERATO (Grant Number JPMJER1305), the International Institute for Carbon Neutral Energy Research (WPI-I2CNER) sponsored by MEXT, and JSPS KAKENHI (Grant Numbers 00H00000). EZ-C the EPSRC (EP/R035164/1; EP/P010482/1) and the University of St Andrews and for SK the European Commission Marie Skłodowska-Curie Individual Fellowship (MCIF; No. 748430- THF-OLED)en
dc.description.abstractWe designed and synthesized two new ambipolar host materials, namely CzPO and Cz3PO . Combining CzPO and Cz3PO with CzTRZ2 as the emitter resulted in improved maximum external quantum efficiencies of 13.1% and 13.2%, respectively, together with small efficiency roll-offs, while the device based on bis[2-(diphenylphosphino)phenyl]ether oxide ( DPEPO ) as host showed a much more pronounced efficiency roll-off.
dc.format.extent795469
dc.language.isoeng
dc.relation.ispartofChemistry Lettersen
dc.subjectThermally activated delayed fluorescence (TADF)en
dc.subjectOrganic light-emitting diode (OLED)en
dc.subjectAmbipolar hosten
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subject.lccQDen
dc.titleHigh-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-offen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEuropean Commissionen
dc.contributor.institutionUniversity of St Andrews. Organic Semiconductor Centreen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.identifier.doi10.1246/cl.190412
dc.description.statusPeer revieweden
dc.date.embargoedUntil2019-09-21
dc.identifier.grantnumberEP/R035164/1en
dc.identifier.grantnumberEP/P010482/1en
dc.identifier.grantnumber748430en


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