含Eu络合物掺杂的PMMA光致发光薄膜的制备与表征

Preparation and Characterization of Photoluminescent PMMA Film Doped with Eu Complex

制备了稀土Eu3+与4-甲氧基二苯甲酰甲烷(4-methoxy-dibenzoylmethane,MDBM)、邻菲罗啉(Phenan-throline,Phen)的络合物Eu(MDBM)3(Phen)x,并通过IR、UV、FS(荧光光谱)对其进行了表征。将Eu(MDBM)3-(Phen)x掺杂到聚甲基丙烯酸甲酯(PMMA)中,得到了光致发光PMMA薄膜。研究结果表明,该薄膜具有较好的光致发光性能,主要荧光激发峰位于380nm,主要荧光发射峰位于613nm,络合物Eu(MDBM)3(Phen)x掺杂量从0.8%增加到1.2%时,薄膜的荧光发射强度呈持续增强趋势,在613nm波长处发射强度增强了13倍。

A complex Eu（MDBM）3 （Phen）x was prepared with Eu3＋, 4-methoxy-dibenzoylmethane（MDBM） and phenanthroline（Phen）,and characterized by IR, UV and FS（fluorescence spectroscopy）. The complex was doped into polymethyl methacrylate（PMMA） in order to obtain photoluminescent PMMA film. The result shows that this film had pretty good photoluminescent property. Its main fluorescence excitation peak was at 380 nm, main fluores cence emission peak was at 613 nm. While the doping amount of Eu（MDBM）a （Phen）x, increased from 0.8% to 1.2%, the fluorescence emission intensity of this PMMA film increased continuously, and the fluorescence emission intensity at 613 nm increased 13 times.