作者: Tasuku Satoh , Hiroyuki Sato , Wataru Sotoyama , Azuma Matsuura , Norio Sawatari
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摘要: An object of the invention is to provide an organic EL element which uses organometallic complex emitting light by phosphorescence and represents excellent luminous efficiency, etc; or like. The includes complex, where a metal atom, tridentate ligand, ligand binds atom tridentately via two nitrogen atoms carbon located between atoms, has azomethine bonds (—C═N—), each in coordinates atom. Preferably, one aspect, monodentate monodentately, another Pt.