| 烟酸稀土分子杂化发光材料的制备与性能研究 |
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| 引用本文： | 梅群波,倪现花,张千峰,童碧海.烟酸稀土分子杂化发光材料的制备与性能研究[J].高分子学报,2009,0(5):478-482. |
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| 作者姓名： | 梅群波 倪现花 张千峰 童碧海 |
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| 作者单位： | 1. 南京邮电大学信息材料与纳米技术研究院,江苏省有机电子与平板显示重点实验室,南京,210046
2. 安徽工业大学分子工程与应用化学研究所,马鞍山,243002 |
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| 基金项目： | 国家自然科学基金，南京邮电大学引进人才科研启动基金 |
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| 摘 要： | 利用烯-巯加成的方法,合成了一种带有三联吡啶基团的有机硅氧烷,该中间体用核磁共振、红外、质谱等手段进行了表征确认.以该中间体作为第二配体,加入稀土(Eu3+、Tb3+)烟酸配合物,在正硅酸乙酯的存在下用溶胶-凝胶法原位制备了稀土(Eu3+、Tb3+)烟酸配合物与二氧化硅基质以共价键相连的烟酸稀土分子杂化发光材料.通过红外光谱、紫外-可见光漫反射光谱、荧光光谱和寿命测试表征了制备的杂化发光材料.荧光光谱数据表明在杂化材料中,由于三联吡啶配体通过有效的分子内传能过程将其激发态的能量传递给稀土离子的发射能级,从而极大地提高了稀土离子的特征发射.掺铕离子的最强发射为617nm,是纯红光发射;而掺铽离子的最强发射为543nm,是典型的绿光发射.掺铕和铽的分子杂化材的荧光寿命分别为0.66ms,0.68ms,同时荧光衰减均为一级指数衰减,说明稀土离子在杂化材料中分散得很均匀.
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| 关 键 词： | 杂化材料 三联吡啶 稀土配合物 荧光 |
| 收稿时间： | 2008-07-29 |
PREPARATION AND RESEARCH ON HYBRID MATERIALS WITH LANTHANIDE NICOTINATE COMPLEXES COVALENTLY BONDED TO SILICA |
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| MEI Qunbo,NI Xianhua,ZHANG Qianfeng,TONG Bihai.PREPARATION AND RESEARCH ON HYBRID MATERIALS WITH LANTHANIDE NICOTINATE COMPLEXES COVALENTLY BONDED TO SILICA[J].Acta Polymerica Sinica,2009,0(5):478-482. |
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| Authors: | MEI Qunbo NI Xianhua ZHANG Qianfeng TONG Bihai |
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| Affiliation: | Jiangsu Key Lab of Organic Electronics &; Information Displays and Institute of Advanced Materials (IAM),Nanjing University of Posts &; Telecommunications (NUPT), Nanjing 210046 , Institute of Molecular Engineering &; Applied Chmistry, Anhui University of Technology, Maanshan 243002 |
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| Abstract: | By thiol-ene addition reaction,we successfully synthesized a silylated terpyridine monomer.This compound was characterized by NMR,IR and MS.Two lanthanides inorganic-organic molecular hybrid materials with lanthanide(Eu3+,Tb3+)nicotinate complexes covalently linked to silica were prepared by this monomer and a sol-gel approach.IR,NMR,UV and photoluminescence spectra were applied to characterize the obtained hybrid materials.The above spectroscopic data present that the triplet energy of silylated terpyridin... |
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| Keywords: | Hybrid materials Terpyridine Lanthanide complexes Luminescence |
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