Near-infrared organic light-emitting diodes with very high external quantum efficiency and radiance

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

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Author(s)

  • Kiet Tuong Ly
  • Ren-Wu Chen-Cheng
  • Hao-Wu Lin
  • Yu-Jeng Shiau
  • Shih-Hung Liu
  • Pi-Tai Chou
  • Cheng-Si Tsao
  • Yu-Ching Huang

Detail(s)

Original languageEnglish
Pages (from-to)63-68
Journal / PublicationNature Photonics
Volume11
Online published28 Nov 2016
Publication statusPublished - Jan 2017
Externally publishedYes

Abstract

Bright and efficient organic emitters of near-infrared light would be of use in applications ranging from biological imaging and medical therapy to night-vision devices. Here we report how a new class of Pt(II) complex phosphors have enabled the fabrication of organic light-emitting diodes that emit light at 740 nm with very high efficiency and radiance due to a high photoluminescence quantum yield of ~81% and a highly preferred horizontal dipole orientation. The best devices exhibited an external quantum efficiency of 24 ± 1% in a normal planar organic light-emitting diode structure. The incorporation of a light out-coupling hemisphere structure further boosts the external quantum efficiency up to 55 ± 3%.

Citation Format(s)

Near-infrared organic light-emitting diodes with very high external quantum efficiency and radiance. / Tuong Ly, Kiet; Chen-Cheng, Ren-Wu; Lin, Hao-Wu et al.
In: Nature Photonics, Vol. 11, 01.2017, p. 63-68.

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