RARE EARTH EUROPIUM COORDINATION COMPLEX AND APPLICATION USING SAME AS LIGHT EMITTING MATERIAL

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Disclosed in the present invention is a rare earth europium coordination complex and applications using the same as a light emitting material. The europium coordination complex has a structural formula of Eu(ND)xAyLm, wherein ND is a 4-hydroxy-1, 5-naphthyridine anion ligand, A is another anion ligand, L is a neutral ligand; x = l, 2 or 3, y = 0, 1 or 2, and x+y = 3; m = 0, 1, 2 or 3. Such europium coordination complexes have a high-efficient photoluminescence quantum yield, good thermal stability and a good carrier transmission efficiency, and can be used as photoluminescent and electroluminescent materials.