Near-infrared organic light-emitting diodes with very high external quantum efficiency and radiance
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 63-68 |
Journal / Publication | Nature Photonics |
Volume | 11 |
Online published | 28 Nov 2016 |
Publication status | Published - Jan 2017 |
Externally published | Yes |
Link(s)
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.
In: Nature Photonics, Vol. 11, 01.2017, p. 63-68.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review