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Red Phosphorescent Bis-Cyclometalated Iridium Complexes With Fluorine-, Phenyl-, and Fluorophenyl-Substituted 2-Arylquinoline Ligands

Red Phosphorescent Bis-Cyclometalated Iridium Complexes With Fluorine-, Phenyl-, and Fluorophenyl-Substituted 2-Arylquinoline Ligands

Jwajin Kim, Kum Hee Lee, Seok Jae Lee, Ho Won Lee, Young Kwan Kim, Young Sik Kim, Seung Soo Yoon

Chemistry. 2016 Mar 14;22(12):4036-45.

PMID: 26879000

Abstract:

Red phosphorescent iridium(III) complexes based on fluorine-, phenyl-, and fluorophenyl-substituted 2-arylquinoline ligands were designed and synthesized. To investigate their electrophosphorescent properties, devices were fabricated with the following structure: indium tin oxide (ITO)/4,4',4''-tris[2-naphthyl(phenyl)amino]triphenylamine (2-TNATA)/4,4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (NPB)/4,4'-bis(N-carbazolyl)-1,1'-biphenyl (CBP): 8% iridium (III) complexes/bathocuproine (BCP)/tris(8-hydroxyquinolinato)aluminum (Alq3)/8-hydroxyquinoline lithium (Liq)/Al. All devices, which use these materials showed efficient red emissions. In particular, a device exhibited a saturated red emission with a maximum luminance, external quantum efficiency, and luminous efficiency of 14200 cd m(-2), 8.44%, and 6.58 cd A(-1) at 20 mA cm(-2), respectively. The CIE (x, y) coordinates of this device are (0.67, 0.33) at 12.0 V.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP58328317	4,4′-Bis(N-carbazolyl)-1,1′-biphenyl		58328-31-7	Price

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