Synthesis and luminescent properties of ternary complexes EuXLa1−X(TTA)3Dipy

• DOI: 10.1016/j.sse.2008.02.003
• Publication Date: 2008-07-01T09:13:13Z
• Authors: Yuguang Lv; QiuPing Li; Yiying Zhang; Yuze Han; Hong Liu; Guiyan Wang; Jinlian Li; Dongmei Wu; Zhiwei Yang; Lingxuan Wang; Jie Xie
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

Abstract Rare-earth ternary complexes Eu X La 1− X (TTA) 3 Dipy ( X = 0, 0.1, 0.25, 0.5, 0.75, 0.9, 1.0) were synthesized. Characterization with DTA-TG, IR, elemental analysis and fluorescent spectra had also been carried out. It is found that the enhanced luminescence of Eu 3+ ions by La 3+ ions occurs in ternary complexes, and when X = 0.25, Eu 0.25 La 0.75 (TTA) 3 Dipy has the highest luminescence efficiency and lifetime. It is proved by TG curve that the complexes are stable, and we monitored the spectra of Eu X La 1− X (TTA) 3 Dipy[PVK:Eu X La 1− X (TTA) 3 Dipy/BCP/AlQ/Al] at the different rate r min −1 . The results showed that the La 3+ ion acts as an energy transfer bridge that helps energy transfer from PVK to Eu 3+ .