期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 95, 期 1, 页码 89-93出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2005.06.005
关键词
europium complex; luminescence; organic-inorganic composite; 1,10-phenanthroline; sol-gel approach
Novel organic-inorganic hybrid composite films with ternary lanthanide complex covalently bonded with silica matrix were prepared in situ via co-ordination of N-(3-propyltriethoxysilane)-4-carboxyphthalimide (TAT) and 1,10-phenanthroline (Phen) with europium ion (Eu3+) during a sol-gel approach and characterized by the means of spectrofluorimeter, phosphorimeter and infrared spectrophotometer (FTIR). The resulting transparent films showed improved photophysical properties, i.e. increased luminescence intensity and longer luminescence lifetime, compared with the corresponding binary composite films without Phen. All the results revealed that the intense luminescence of the composite film was attributed to the efficient energy transfer from ligands, especially Phen, to chelated Eu3+ and the reduced non-radiation through the rigid silica matrix and site isolation. (c) 2005 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据