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


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2017-01

AUTHORS

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, Yun Chi

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%. More... »

PAGES

63-68

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/nphoton.2016.230

DOI

http://dx.doi.org/10.1038/nphoton.2016.230

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1048178762


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