Preparation and luminescence properties of europium complex with α-naphthylacetic acid incorporated in silica matrix by sol-gel method  

作　　者：陈野 蔡伟民 孙晓君 崔丹 于英宁 

机构地区：[1]Dept. of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150001, China, [2].Dept. of Chemical Engineering, Harbin Engineering University, Harbin 150001, China [3]Dept. of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150001, China [4]Dept. of Chemistry, Heilongjiang University, Harbin 150080, China [5]Key Laboratory of Rare Earth Chemical and Physics, Changchun Institute of Chemistry, Changchun 130022,China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2004年第3期347-350,共4页哈尔滨工业大学学报（英文版）

摘　　要：Europium ternary complex of Eu(NNA) 3(NNA=α-naphthylacetic acid) was embedded in silica matrix at different ratios by sol-gel method. The luminescence properties of silica composites were studied by comparing them with those of corresponding pure complex by means of excitation, emission spectra and lifetimes. The fluorescence lifetime was prolonged when the pure complex was incorporated in silica matrix. The relative fluorescence intensity and fluorescence lifetimes increased simultaneously with the increase of (Eu(NNA) 3.)Europium ternary complex of Eu(NNA) 3(NNA=α-naphthylacetic acid) was embedded in silica matrix at different ratios by sol-gel method. The luminescence properties of silica composites were studied by comparing them with those of corresponding pure complex by means of excitation, emission spectra and lifetimes. The fluorescence lifetime was prolonged when the pure complex was incorporated in silica matrix. The relative fluorescence intensity and fluorescence lifetimes increased simultaneously with the increase of (Eu(NNA) 3.)

关 键 词：EUROPIUM LUMINESCENCE hybrid composites sol-gel method 

分 类 号：O614.344[理学—无机化学] TN383[理学—化学]