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在乙烯基改性的凝胶玻璃基质中原位合成了Eu(DBM ) 3·2H2 O配合物 ,用低温稳态光致发光 ( photoluminescence,PL)光谱和室温时间分辨光谱研究了其光谱性能。研究表明 :Eu3+ 离子在原位合成配合物Eu(DBM ) 3·2H2 O中的近邻对称性为C2V。在刚性的凝胶玻璃基质中由于分子间相互碰撞和剧烈振动而引起的热去激活和非辐射弛豫几率降低 ,更有利于有机配体到Eu3+ 离子5D0 能级的有效分子内传能 ,5D0 能级的寿命较在乙醇溶液中大得多
The Eu (DBM) 3 · 2H 2 O complex was synthesized in situ in a vinyl modified glassy matrix. The spectroscopic properties of the complex were studied by steady-state photoluminescence (PL) and time-resolved spectroscopy at room temperature. The results show that the near neighbor symmetry of Eu3 + ions in Eu (DBM) 3 · 2H2O is C2V. In the rigid gel glass matrix due to collision between molecules and violent vibration caused by thermal deactivation and non-radiation relaxation probability is more conducive to the organic ligand to Eu3 + 5D0 level effective molecular energy transfer, 5D0 Energy level life is much greater than in ethanol solution