Abstract
In order to understand the effect of β-diketone ligands containing carbazole group on luminescent europium (III) complexes, a series of europium (III) complexes (Phen)Eu (DBM)3-nLnwith 1-(9-Ethyl-9H-carbazol-3-yl)-4,4,4-trifluorobutane-1,3-dione (L) were synthesized and investigated contrastively (n = 0, 1, 2, 3; DBM: dibenzoylmethane; Phen: 1,10-phenanthroline). The results show amorphous nature, glass transition temperatures and luminescent intensity can be improved obviously by 1-(9-ethyl-9H-carbazol-3-yl)-4,4,4-trifluorobutane-1,3-dione, at the same time, their thermal decomposition temperatures have seldom effected by it. The results verify the performance of europium (III) complexes used as luminescent materials can be effectively improved by the β-diketone ligands of this type.
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