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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
Title | 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 |
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Authors | |
Keywords | gold ligand-to-ligand charge transfer organic light-emitting devices thermally activated delayed fluorescence |
Issue Date | 2019 |
Publisher | Wiley 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? |
Abstract | Thermally 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 Identifier | http://hdl.handle.net/10722/274829 |
ISSN | 2023 Impact Factor: 14.3 2023 SCImago Journal Rankings: 3.914 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Zhou, D | - |
dc.contributor.author | To, WP | - |
dc.contributor.author | Kwak, Y | - |
dc.contributor.author | Cho, Y | - |
dc.contributor.author | Cheng, G | - |
dc.contributor.author | Tong, SM | - |
dc.contributor.author | Che, CM | - |
dc.date.accessioned | 2019-09-10T02:29:40Z | - |
dc.date.available | 2019-09-10T02:29:40Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Advanced Science, 2019, v. 6 n. 18, article no. 1802297 | - |
dc.identifier.issn | 2198-3844 | - |
dc.identifier.uri | http://hdl.handle.net/10722/274829 | - |
dc.description.abstract | Thermally 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.language | eng | - |
dc.publisher | Wiley Open Access. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2198-3844 | - |
dc.relation.ispartof | Advanced Science | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | gold | - |
dc.subject | ligand-to-ligand charge transfer | - |
dc.subject | organic light-emitting devices | - |
dc.subject | thermally activated delayed fluorescence | - |
dc.title | 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 | - |
dc.type | Article | - |
dc.identifier.email | To, WP: kevintwp@HKUCC-COM.hku.hk | - |
dc.identifier.email | Cheng, G: ggcheng@hku.hk | - |
dc.identifier.email | Tong, SM: tongsm@hku.hk | - |
dc.identifier.email | Che, CM: chemhead@hku.hk | - |
dc.identifier.authority | To, WP=rp02410 | - |
dc.identifier.authority | Cheng, G=rp02145 | - |
dc.identifier.authority | Tong, SM=rp00790 | - |
dc.identifier.authority | Che, CM=rp00670 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1002/advs.201802297 | - |
dc.identifier.scopus | eid_2-s2.0-85070495717 | - |
dc.identifier.hkuros | 304634 | - |
dc.identifier.volume | 6 | - |
dc.identifier.issue | 18 | - |
dc.identifier.spage | article no. 1802297 | - |
dc.identifier.epage | article no. 1802297 | - |
dc.identifier.isi | WOS:000478918400001 | - |
dc.publisher.place | Germany | - |
dc.identifier.issnl | 2198-3844 | - |