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

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

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

Detail(s)

Original languageEnglish
Article number1702464
Journal / PublicationAdvanced Materials
Volume29
Issue number33
Online published21 Jun 2017
Publication statusPublished - 6 Sept 2017
Externally publishedYes

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.

Research Area(s)

  • carbene, iridium, organic light-emitting diodes, phosphorescence, pyrazole, tridentate

Citation Format(s)

Bis-Tridentate Ir(III) Metal Phosphors for Efficient Deep-Blue Organic Light-Emitting Diodes. / Kuo, Hsin-Hung; Chen, Yi-Ting; Devereux, Leon R. et al.
In: Advanced Materials, Vol. 29, No. 33, 1702464, 06.09.2017.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review