Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 유영민 | * |
dc.date.accessioned | 2022-03-29T16:31:02Z | - |
dc.date.available | 2022-03-29T16:31:02Z | - |
dc.date.issued | 2022 | * |
dc.identifier.issn | 1749-4885 | * |
dc.identifier.other | OAK-31119 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/260941 | - |
dc.description.abstract | Blue phosphorescent organic light-emitting diodes (PhOLEDs) can deliver superior electroluminescence efficiencies than blue fluorescent OLEDs; however, their commercial debut has been delayed by short device lifetimes, especially for deep-blue PhOLEDs with Commission International de l’Eclairage y co-ordinates of less than 0.20. Here we report the use of new dopant and host materials to create a blue PhOLED device with a y co-ordinate of 0.197 and a long device lifetime of LT70 = 1,113 h [Initial luminance (L0) = 1,000 cd m–2]. Introducing bulky 3,5-di-tert-butyl-phenyl into the N-heterocyclic carbene moiety in the Pt(II) complex enhanced the photochemical stability of the high-lying metal-centred triplet state and prevented undesirable host–guest interactions, contributing to a longer device lifetime and higher colour purity. For the exciplex-forming host, the hole-transporting and electron-transporting host materials utilized a triphenylsilyl group for enhanced stability, which also improved the device lifetime. © 2022, The Author(s), under exclusive licence to Springer Nature Limited. | * |
dc.language | English | * |
dc.publisher | Nature Research | * |
dc.title | Exceptionally stable blue phosphorescent organic light-emitting diodes | * |
dc.type | Article | * |
dc.relation.issue | 3 | * |
dc.relation.volume | 16 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 212 | * |
dc.relation.lastpage | 218 | * |
dc.relation.journaltitle | Nature Photonics | * |
dc.identifier.doi | 10.1038/s41566-022-00958-4 | * |
dc.identifier.wosid | WOS:000761852700001 | * |
dc.identifier.scopusid | 2-s2.0-85125131895 | * |
dc.author.google | Sun J. | * |
dc.author.google | Ahn H. | * |
dc.author.google | Kang S. | * |
dc.author.google | Ko S.-B. | * |
dc.author.google | Song D. | * |
dc.author.google | Um H.A. | * |
dc.author.google | Kim S. | * |
dc.author.google | Lee Y. | * |
dc.author.google | Jeon P. | * |
dc.author.google | Hwang S.-H. | * |
dc.author.google | You Y. | * |
dc.author.google | Chu C. | * |
dc.contributor.scopusid | 유영민(24759463600) | * |
dc.date.modifydate | 20240422132144 | * |