Iridium complexes and preparation method thereof and electroluminescent devices using iridium complexes
A technology of iridium complexes and complexes, applied in the fields of electroluminescent devices and organic electroluminescent devices, can solve the problems of reduced efficiency and efficiency roll-off, and achieve the effects of convenient design and production, high yield and high luminous efficiency
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The terms used in the present invention, unless otherwise specified, generally have the meanings commonly understood by those skilled in the art.
[0025] The invention discloses a red-light iridium complex, which includes four novel main ligands and an auxiliary ligand. The auxiliary ligand is tetrakis(4-trifluoromethyl-3-pyridyl)phosphonimide or tetrakis(4-trifluoromethyl-3,5-pyrimidinyl)phosphonimide. The main ligand is 2-(4,6-bistrifluoromethylpyridine-3-)quinoline, 2-(4,6-bistrifluoromethylpyridine-4-)quinoline, 2-(4 , 6-bistrifluoromethylpyridine-3-)isoquinoline, 2-(4,6-bistrifluoromethylpyridine-4-)isoquinoline, 2-(4,6-bistrifluoromethyl Pyridine-3-)quinazoline, 2-(4,6-bistrifluoromethylpyridine-4-)quinazoline and 2-(4,6-bistrifluoromethylpyridine-3-)phthalazine, Any one of 2-(4,6-bistrifluoromethylpyridine-4-)phthalazine derivatives. ...
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