溶胶凝胶法SiO_2-Eu(Ⅲ)配合物杂化材料的制备及其发光性能  

Synthesis and Characterization of a Luminescent SiO_2-Eu(Ⅲ) Complex Hybrid Material by Sol-gel Method

作　　者：曹迁永[1] 李志华[1] 

机构地区：[1]南昌大学化学系,江西南昌330031

出　　处：《南昌大学学报（工科版）》2010年第1期20-23,共4页Journal of Nanchang University(Engineering & Technology)

基　　金：江西省教育厅资助项目(GJJ09074);南昌大学创新团队资金项目资助

摘　　要：以N,N-二-二苯氧膦-4-溴甲基-苯胺(DPBB)与3-氨丙基三乙氧基硅烷反应得到一种含P=O的有机硅烷前驱体Si-DPBB,并与Eu(DBM)3.2H2O及四乙氧基硅烷通过溶胶-凝胶法反应得到一种新的无定形无机-Eu(Ⅲ)配合物杂化材料SiO2-DPBB-Eu。红外、紫外-可见漫反射及荧光光谱表明,在杂化材料SiO2-DPBB-Eu中,稀土离子Eu3+与Si-DPBB中的P=O发生配位,并分布在SiO2网络中。该杂化材料显出良好的由配体到Eu3+能量转移的线状5D0-7FJ(J=0,1,2,3与4)红光发射。A new inorganic-organic hybrid material containing europium complex SiO2-DPBB-Eu was prepared by sol-gel of Eu（DBM）3·2H2O,Si-DPBB and tetraethoxysilane,in which the organosilica precursor Si-DPBB was prepared by reaction of N,N-bi（diphenyloxyphosphine）-4-bromomethyl-benzenamine with 3-（triethoxysilyl）propan-1-amine.The new hybrid material was characterized by IR,UV-VIS diffuse reflectance spectrum and emission spectrum.The resuet shows that the europium（III） ion coordinates the P=O of Si-DPBB in the silica matrix,and displays red emission of the Eu3＋ 5D0-7FJ（J=0,1,2,3 and 4） transition lines due to the efficient energy transfer from the ligands to Eu3＋.

关 键 词：溶胶-凝胶法 无机-有机杂化材料 稀土 发光 

分 类 号：O614.338[理学—无机化学]