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Article: Design Strategy Towards Horizontally Oriented Luminescent Tetradentate‐Ligand‐Containing Gold(III) Systems

TitleDesign Strategy Towards Horizontally Oriented Luminescent Tetradentate‐Ligand‐Containing Gold(III) Systems
Authors
Issue Date2020
PublisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at https://onlinelibrary.wiley.com/journal/15213773
Citation
Angewandte Chemie (International Edition), 2020, v. 59 n. 47, p. 21023-21031 How to Cite?
AbstractPhosphorescent dopants are promising candidates for organic light-emitting diodes (OLEDs). Although it has been established that the out-coupling efficiency and overall performances of vacuum-deposited OLEDs can be significantly improved by a horizontal orientation of the dopants, no horizontally oriented gold(III) complexes have been reported to date. Herein, a novel class of tetradentate C^C^N^N ligand-containing gold(III) complexes with a preferential horizontal orientation successfully generated through a one-pot reaction is reported. These complexes demonstrate high photoluminescence quantum yields of 70 % and a high horizontal dipole ratio of 0.87 in solid-state thin films. Green-emitting OLEDs based on these complexes operate with a maximum external quantum efficiency of 20.6 % with an estimated out-coupling efficiency of around 30 %. A promising device stability has been achieved in the vacuum-deposited OLEDs, with operational half-lifetimes of around 37 500 h at 100 cd m−2.
Persistent Identifierhttp://hdl.handle.net/10722/304652
ISSN
2020 Impact Factor: 15.336
2020 SCImago Journal Rankings: 5.831

 

DC FieldValueLanguage
dc.contributor.authorTang, MC-
dc.contributor.authorLi, LK-
dc.contributor.authorLai, SL-
dc.contributor.authorCHEUNG, WL-
dc.contributor.authorNg, M-
dc.contributor.authorWONG, CY-
dc.contributor.authorChan, MY-
dc.contributor.authorYam, VWW-
dc.date.accessioned2021-10-05T02:33:13Z-
dc.date.available2021-10-05T02:33:13Z-
dc.date.issued2020-
dc.identifier.citationAngewandte Chemie (International Edition), 2020, v. 59 n. 47, p. 21023-21031-
dc.identifier.issn1433-7851-
dc.identifier.urihttp://hdl.handle.net/10722/304652-
dc.description.abstractPhosphorescent dopants are promising candidates for organic light-emitting diodes (OLEDs). Although it has been established that the out-coupling efficiency and overall performances of vacuum-deposited OLEDs can be significantly improved by a horizontal orientation of the dopants, no horizontally oriented gold(III) complexes have been reported to date. Herein, a novel class of tetradentate C^C^N^N ligand-containing gold(III) complexes with a preferential horizontal orientation successfully generated through a one-pot reaction is reported. These complexes demonstrate high photoluminescence quantum yields of 70 % and a high horizontal dipole ratio of 0.87 in solid-state thin films. Green-emitting OLEDs based on these complexes operate with a maximum external quantum efficiency of 20.6 % with an estimated out-coupling efficiency of around 30 %. A promising device stability has been achieved in the vacuum-deposited OLEDs, with operational half-lifetimes of around 37 500 h at 100 cd m−2.-
dc.languageeng-
dc.publisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at https://onlinelibrary.wiley.com/journal/15213773-
dc.relation.ispartofAngewandte Chemie (International Edition)-
dc.rightsSubmitted (preprint) Version This is the pre-peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. Accepted (peer-reviewed) Version This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.-
dc.titleDesign Strategy Towards Horizontally Oriented Luminescent Tetradentate‐Ligand‐Containing Gold(III) Systems-
dc.typeArticle-
dc.identifier.emailLai, SL: slllai@hku.hk-
dc.identifier.emailChan, MY: chanmym@hku.hk-
dc.identifier.emailYam, VWW: deanmail@hku.hk-
dc.identifier.authorityChan, MY=rp00666-
dc.identifier.authorityYam, VWW=rp00822-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/anie.202006911-
dc.identifier.pmid32754992-
dc.identifier.scopuseid_2-s2.0-85090978603-
dc.identifier.hkuros326327-
dc.identifier.volume59-
dc.identifier.issue47-
dc.identifier.spage21023-
dc.identifier.epage21031-
dc.publisher.placeGermany-

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