Sensitization and intra-molecular energy transfer of Eu3+ by Tb3+ in Eu-Tb binuclear complexes/PMMA

被引：0
作者：
Jing Han
Jie Li
机构：
[1] North University of China,College of Mechatronic Engineering
[2] North University of China,College of Materials Science and Engineering
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2011年 / 26卷
关键词：
sensitization; energy transfer; rare-earth polymer; polymerization;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A series of Eu0.5Tb0.5(TTA)3Phen/PMMA (TTA=thenoyltrifluoroacetone, Phen=phenanthroline) and Eu0.5Tb0.5(TTA)3Dipy/PMMA (Dipy=2,2′-dipyridyl) were prepared by in-situ polymerization. The structures of the composites were characterized by IR spectra and electron spectrum. Photoluminescence properties were investigated by UV-Vis spectra and fluorescence spectra. Meanwhile, the energy transfer models were set up. The results indicated that polymer parts were attached with the rare-earth molecular parts in the composite luminescent materials. Eu0.5Tb0.5(TTA)3Phen/PMMA and Eu0.5Tb0.5(TTA)3Dipy/PMMA emitted mostly characteristic fluorescence of europium ion and intense red fluorescence with peak wavelength at 611.8 nm and bandwidth of 10.4 nm under UV excitation at 365 nm. Fluorescence intensity of Eu0.5Tb0.5(TTA)3Phen/PMMA was found to be influenced with the content of MMA. The fluorescence emission of europium ions was greatly sensitized by terbium ions and the enhancement of red emission was most likely due to the energy transfer enhancement from Tb3+ to Eu3+.
引用
收藏
页码：398 / 402
页数：4
相关论文
共 47 条
[1]  
Hasegawa M.(2006)Picosecond Time-Resolved Luminescence of Pr(III) Complexes: Intramolecular Excitation Energy Transfer from Ligand to Pr(III)[J] Photobiol. A 178 220-224
[2]  
Ishii A.(2006)Dependence of Photoluminescent Properties of CubicY J. Lumin. 118 220-226
[3]  
Kishi S.(2007)O Anal. Biochem. 361 126-131
[4]  
Song H.(2000):Tb J. Thin Solid Films 363 208-210
[5]  
Wang J.(1999) Nanocrystals on Particle Size Temperature [J] J. Lumin. 82 105-109
[6]  
Laitala V.(2002)Time-Resolved Detection Probe for Homogeneous Nucleic Acid Analyses in One-Step Format[J] Adv. Mater. 14 980-983
[7]  
Ylikoski A.(2005)Enhanced Electroluminescence of Europium(III) Complex by Terbium(III) Substitution in Organic Light Emitting Diodes[J] Appl. Phys. Lett. 87 011 103-011 105
[8]  
Raussi H.M.(2003)White Light Emitting Organic Electroluminescent Devices Using Lanthanide Dinuclear Complexes[J] J. Solid State Chem. 171 396-400
[9]  
Zhao D.(2006)Orienting Eu(dnm) Polym. Adv. Technol. 17 20-25
[10]  
Hong Z.(2007)phen by Tensile Drawing in Polyethylene: Polarized Eu Chin. J. Appl. Chem. 24 1 157-1 161
12345