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Article: Judicious Choice of N‐Heterocycles for the Realization of Sky‐Blue‐ to Green‐Emitting Carbazolylgold(III) C^C^N Complexes and Their Applications for Organic Light‐Emitting Devices

TitleJudicious Choice of N‐Heterocycles for the Realization of Sky‐Blue‐ to Green‐Emitting Carbazolylgold(III) C^C^N Complexes and Their Applications for Organic Light‐Emitting Devices
Authors
Keywordsgold
luminescence
nitrogen heterocycles
operational stability
organic light-emitting devices
Issue Date2020
PublisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at http://www3.interscience.wiley.com/journal/26737/home
Citation
Angewandte Chemie (International Edition), 2020, v. 59 n. 24, p. 9684-9692 How to Cite?
AbstractA new class of sky‐blue‐ to green‐emitting carbazolylgold(III) C^C^N complexes containing pyrazole or benzimidazole moieties has been successfully designed and synthesized. Through the judicious choice of the N‐heterocycles in the cyclometalating ligand and the tailor‐made carbazole moieties, maximum photoluminescence quantum yields of 0.52 and 0.39 have been realized in the green‐ and sky‐blue‐emitting complexes, respectively. Solution‐processed and vacuum‐deposited organic light‐emitting devices (OLEDs) based on the benzimidazole‐containing complexes have been prepared. The sky‐blue‐emitting device shows an emission peaking at 484 nm with a narrow full‐width at half‐maximum of 57 nm (2244 cm−1), demonstrating the potential of this class of complexes in the application of OLEDs with high color purity. In addition, high maximum external quantum efficiencies of 12.3 % and a long operational half‐lifetime of over 5300 h at 100 cd m−2 have been achieved in the vacuum‐deposited green‐emitting devices.
Persistent Identifierhttp://hdl.handle.net/10722/286157
ISSN
2020 Impact Factor: 15.336
2020 SCImago Journal Rankings: 5.831
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorKWOK, WK-
dc.contributor.authorTang, MC-
dc.contributor.authorLai, SL-
dc.contributor.authorCHEUNG, WL-
dc.contributor.authorLI, LK-
dc.contributor.authorNg, M-
dc.contributor.authorChan, MY-
dc.contributor.authorYam, VWW-
dc.date.accessioned2020-08-31T06:59:56Z-
dc.date.available2020-08-31T06:59:56Z-
dc.date.issued2020-
dc.identifier.citationAngewandte Chemie (International Edition), 2020, v. 59 n. 24, p. 9684-9692-
dc.identifier.issn1433-7851-
dc.identifier.urihttp://hdl.handle.net/10722/286157-
dc.description.abstractA new class of sky‐blue‐ to green‐emitting carbazolylgold(III) C^C^N complexes containing pyrazole or benzimidazole moieties has been successfully designed and synthesized. Through the judicious choice of the N‐heterocycles in the cyclometalating ligand and the tailor‐made carbazole moieties, maximum photoluminescence quantum yields of 0.52 and 0.39 have been realized in the green‐ and sky‐blue‐emitting complexes, respectively. Solution‐processed and vacuum‐deposited organic light‐emitting devices (OLEDs) based on the benzimidazole‐containing complexes have been prepared. The sky‐blue‐emitting device shows an emission peaking at 484 nm with a narrow full‐width at half‐maximum of 57 nm (2244 cm−1), demonstrating the potential of this class of complexes in the application of OLEDs with high color purity. In addition, high maximum external quantum efficiencies of 12.3 % and a long operational half‐lifetime of over 5300 h at 100 cd m−2 have been achieved in the vacuum‐deposited green‐emitting devices.-
dc.languageeng-
dc.publisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at http://www3.interscience.wiley.com/journal/26737/home-
dc.relation.ispartofAngewandte Chemie (International Edition)-
dc.rightsThis 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.subjectgold-
dc.subjectluminescence-
dc.subjectnitrogen heterocycles-
dc.subjectoperational stability-
dc.subjectorganic light-emitting devices-
dc.titleJudicious Choice of N‐Heterocycles for the Realization of Sky‐Blue‐ to Green‐Emitting Carbazolylgold(III) C^C^N Complexes and Their Applications for Organic Light‐Emitting Devices-
dc.typeArticle-
dc.identifier.emailTang, MC: kobetang@hku.hk-
dc.identifier.emailLai, SL: slllai@hku.hk-
dc.identifier.emailNg, M: mkyng@hku.hk-
dc.identifier.emailChan, MY: chanmym@hku.hk-
dc.identifier.emailYam, VWW: wwyam@hku.hk-
dc.identifier.authorityChan, MY=rp00666-
dc.identifier.authorityYam, VWW=rp00822-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/anie.202001972-
dc.identifier.pmid32255243-
dc.identifier.scopuseid_2-s2.0-85082957994-
dc.identifier.hkuros313083-
dc.identifier.volume59-
dc.identifier.issue24-
dc.identifier.spage9684-
dc.identifier.epage9692-
dc.identifier.isiWOS:000524288500001-
dc.publisher.placeGermany-
dc.identifier.issnl1433-7851-

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