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Highly Efficient Green Solution Processable Organic Light-Emitting Diodes Based on a Phosphorescent κ3-(N^C^C)Gold(III)-Alkynyl Complex


Beucher, Hélène; Kumar, Sudhir; Merino, Estíbaliz; Hu, Wei-Hsu; Stemmler, Gerrit; Cuesta-Galisteo, Sergio; González, Jorge A; Jagielski, Jakub; Shih, Chih-Jen; Nevado, Cristina (2020). Highly Efficient Green Solution Processable Organic Light-Emitting Diodes Based on a Phosphorescent κ3-(N^C^C)Gold(III)-Alkynyl Complex. Chemistry of Materials, 32(4):1605-1611.

Abstract

Gold(III) complexes are emerging as promising phosphorescent emitters for high-efficiency organic light-emitting diodes (OLEDs). However, despite recent advances in the coordination and organometallic chemistry of gold, only few compounds have been successful in high-performance devices. Here, we disclose the synthesis of a new phosphorescent κ3-(N^C^C)-aminophenylalkynyl-N,N′-bisfluorenyl-Au(III) complex which exhibits a current efficiency (ηCE) of 56.4 cd A–1 and an external quantum efficiency (ηext) of 16.2% in solution processable OLED devices. Our findings establish a new branch of gold(III)-alkyne compounds with remarkable electroluminescent performance for potential application in highly efficient OLEDs.

Abstract

Gold(III) complexes are emerging as promising phosphorescent emitters for high-efficiency organic light-emitting diodes (OLEDs). However, despite recent advances in the coordination and organometallic chemistry of gold, only few compounds have been successful in high-performance devices. Here, we disclose the synthesis of a new phosphorescent κ3-(N^C^C)-aminophenylalkynyl-N,N′-bisfluorenyl-Au(III) complex which exhibits a current efficiency (ηCE) of 56.4 cd A–1 and an external quantum efficiency (ηext) of 16.2% in solution processable OLED devices. Our findings establish a new branch of gold(III)-alkyne compounds with remarkable electroluminescent performance for potential application in highly efficient OLEDs.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Scopus Subject Areas:Physical Sciences > General Chemistry
Physical Sciences > General Chemical Engineering
Physical Sciences > Materials Chemistry
Uncontrolled Keywords:Materials Chemistry, General Chemistry, General Chemical Engineering
Language:English
Date:25 February 2020
Deposited On:29 Jul 2020 09:25
Last Modified:30 Jul 2020 20:00
Publisher:American Chemical Society (ACS)
ISSN:0897-4756
Additional Information:This document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.chemmater.9b04990
OA Status:Green
Publisher DOI:https://doi.org/10.1021/acs.chemmater.9b04990
Project Information:
  • : FunderFP7
  • : Grant ID307948
  • : Project TitleNIGOCAT - Nature-Inspired Gold Catalytic Tools

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