Bis-tridentate Ir(III) Metal Phosphors for Efficient Deep-Blue Organic Light-Emitting Diodes

Kuo, Hsin-Hung; Chen, Yi-Ting; Devereux, Leon R.; Wu, Chung-Chih; Fox, Mark A.; Kuei, Chu-Yun; Chi, Yun; Lee, Gene-Hsiang

doi:10.1002/adma.201702464

Bis-tridentate Ir(III) Metal Phosphors for Efficient Deep-Blue Organic Light-Emitting Diodes

Kuo, Hsin-Hung; Chen, Yi-Ting; Devereux, Leon R.; Wu, Chung-Chih; Fox, Mark A.; Kuei, Chu-Yun; Chi, Yun; Lee, Gene-Hsiang

Authors

Hsin-Hung Kuo

Yi-Ting Chen

Leon R. Devereux

Chung-Chih Wu

Dr Mark Fox m.a.fox@durham.ac.uk
Assistant Professor

Chu-Yun Kuei

Yun Chi

Gene-Hsiang Lee

Abstract

Emissive Ir(III) metal complexes possessing two tridentate chelates (bis-tridentate) are known to be more robust compared to those with three bidentate chelates (tris-bidentate). Here, the deep-blue-emitting, bis-tridentate Ir(III) metal phosphors bearing both the dicarbene pincer ancillary such as 2,6-diimidazolylidene benzene and the 6-pyrazolyl-2-phenoxylpyridine chromophoric chelate are synthesized. A deep-blue organic light-emitting diode from one phosphor exhibits Commission Internationale de l'Eclairage (CIE(x,y)) coordinates of (0.15, 0.17) with maximum external quantum efficiency (max. EQE) of 20.7% and EQE = 14.6% at the practical brightness of 100 cd m−2.

Citation

Kuo, H., Chen, Y., Devereux, L. R., Wu, C., Fox, M. A., Kuei, C., …Lee, G. (2017). Bis-tridentate Ir(III) Metal Phosphors for Efficient Deep-Blue Organic Light-Emitting Diodes. Advanced Materials, 29(33), Article 1702464. https://doi.org/10.1002/adma.201702464

Journal Article Type	Article
Acceptance Date	May 22, 2017
Online Publication Date	Jun 21, 2017
Publication Date	Sep 6, 2017
Deposit Date	May 22, 2017
Publicly Available Date	May 23, 2017
Journal	Advanced Materials
Print ISSN	0935-9648
Electronic ISSN	1521-4095
Publisher	Wiley
Peer Reviewed	Peer Reviewed
Volume	29
Issue	33
Article Number	1702464
DOI	https://doi.org/10.1002/adma.201702464

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© 2017 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.