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Strategies towards rational design of gold(III) complexes for high-performance organic light-emitting devices.
- Source :
- Nature Photonics; Mar2019, Vol. 13 Issue 3, p185-191, 7p, 1 Diagram, 5 Graphs
- Publication Year :
- 2019
-
Abstract
- Gold(III) complexes are attractive candidates as phosphorescent dopants in organic light-emitting devices for high-luminance full-colour displays. However, no data on the stability of such devices have been reported to date. Through rational molecular design and synthesis, we have successfully generated a new class of cyclometalated gold(III) C^C^N complexes with tunable emission colours spanning from sky-blue to red. These complexes exhibit high photoluminescence quantum yields of up to 80% in solid-state thin films, excellent solubility and high thermal stability. Solution-processable and vacuum-deposited organic light-emitting devices based on these complexes operate with external quantum efficiencies of up to 11.9% and 21.6%, respectively, and operational half-lifetimes of up to 83,000 h at 100 cd m<superscript>−2</superscript>. Cyclometalated gold(III) complexes are shown to offer tunable emission colours spanning from sky-blue to red and enable the fabrication of phosphorescent organic light-emitting devices with high external quantum efficiency and long lifetimes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17494885
- Volume :
- 13
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Nature Photonics
- Publication Type :
- Academic Journal
- Accession number :
- 134854929
- Full Text :
- https://doi.org/10.1038/s41566-018-0332-z