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Article: Thermally Stable Donor–Acceptor Type (Alkynyl)Gold(III) TADF Emitters Achieved EQEs and Luminance of up to 23.4% and 70 300 cd m −2 in Vacuum‐Deposited OLEDs

TitleThermally Stable Donor–Acceptor Type (Alkynyl)Gold(III) TADF Emitters Achieved EQEs and Luminance of up to 23.4% and 70 300 cd m −2 in Vacuum‐Deposited OLEDs
Authors
Keywordsgold
ligand-to-ligand charge transfer
organic light-emitting devices
thermally activated delayed fluorescence
Issue Date2019
PublisherWiley Open Access. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2198-3844
Citation
Advanced Science, 2019, v. 6 n. 18, article no. 1802297 How to Cite?
AbstractThermally stable, strongly luminescent gold-TADF emitters are the clue to realize practical applications of gold metal in next generation display and lighting technology, a scarce example of which is herein described. A series of donor-acceptor type cyclometalated gold(III) alkynyl complexes with some of them displaying highly efficient thermally activated delayed fluorescence (TADF) with Phi up to 88% in thin films and emission lifetimes of approximate to 1-2 mu s at room temperature are developed. The emission color of these complexes is readily tunable from green to red by varying the donor unit and cyclometalating ligand. Vacuum-deposited organic light-emitting diodes (OLEDs) with these complexes as emissive dopants achieve external quantum efficiencies (EQEs) and luminance of up to 23.4% and 70 300 cd m(-2), respectively.
Persistent Identifierhttp://hdl.handle.net/10722/274829
ISSN
2018 Impact Factor: 15.804
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhou, D-
dc.contributor.authorTo, WP-
dc.contributor.authorKwak, Y-
dc.contributor.authorCho, Y-
dc.contributor.authorCheng, G-
dc.contributor.authorTong, SM-
dc.contributor.authorChe, CM-
dc.date.accessioned2019-09-10T02:29:40Z-
dc.date.available2019-09-10T02:29:40Z-
dc.date.issued2019-
dc.identifier.citationAdvanced Science, 2019, v. 6 n. 18, article no. 1802297-
dc.identifier.issn2198-3844-
dc.identifier.urihttp://hdl.handle.net/10722/274829-
dc.description.abstractThermally stable, strongly luminescent gold-TADF emitters are the clue to realize practical applications of gold metal in next generation display and lighting technology, a scarce example of which is herein described. A series of donor-acceptor type cyclometalated gold(III) alkynyl complexes with some of them displaying highly efficient thermally activated delayed fluorescence (TADF) with Phi up to 88% in thin films and emission lifetimes of approximate to 1-2 mu s at room temperature are developed. The emission color of these complexes is readily tunable from green to red by varying the donor unit and cyclometalating ligand. Vacuum-deposited organic light-emitting diodes (OLEDs) with these complexes as emissive dopants achieve external quantum efficiencies (EQEs) and luminance of up to 23.4% and 70 300 cd m(-2), respectively.-
dc.languageeng-
dc.publisherWiley Open Access. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2198-3844-
dc.relation.ispartofAdvanced Science-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectgold-
dc.subjectligand-to-ligand charge transfer-
dc.subjectorganic light-emitting devices-
dc.subjectthermally activated delayed fluorescence-
dc.titleThermally Stable Donor–Acceptor Type (Alkynyl)Gold(III) TADF Emitters Achieved EQEs and Luminance of up to 23.4% and 70 300 cd m −2 in Vacuum‐Deposited OLEDs-
dc.typeArticle-
dc.identifier.emailTo, WP: kevintwp@HKUCC-COM.hku.hk-
dc.identifier.emailCheng, G: ggcheng@hku.hk-
dc.identifier.emailTong, SM: tongsm@hku.hk-
dc.identifier.emailChe, CM: chemhead@hku.hk-
dc.identifier.authorityTo, WP=rp02410-
dc.identifier.authorityCheng, G=rp02145-
dc.identifier.authorityTong, SM=rp00790-
dc.identifier.authorityChe, CM=rp00670-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1002/advs.201802297-
dc.identifier.scopuseid_2-s2.0-85070495717-
dc.identifier.hkuros304634-
dc.identifier.volume6-
dc.identifier.issue18-
dc.identifier.spagearticle no. 1802297-
dc.identifier.epagearticle no. 1802297-
dc.identifier.isiWOS:000478918400001-
dc.publisher.placeGermany-
dc.identifier.issnl2198-3844-

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