Synthesis and luminescence properties of ternary complexes of SmxTb1-x(TTA)3Phen nanoparticles and their surface modification

被引：8

作者：

Ni, Yaru ^{[1
]}

Tao, Jing ^{[1
]}

Lu, Chunhua ^{[1
]}

Xu, Zhongzi ^{[1
]}

Kang, Zhitao ^{[2
,3
]}

Xu, Feng ^{[4
]}

机构：

[1] Nanjing Univ Technol, Nanjing 210009, Peoples R China

[2] Georgia Inst Technol, Georgia Tech Res Inst, Atlanta, GA 30332 USA

[3] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[4] Southeast Univ, Minist Educ, Key Lab MEMS, Nanjing 210096, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2013年 / 48卷 / 15期

基金：

中国国家自然科学基金;

关键词：

INTRAMOLECULAR ENERGY-TRANSFER; RARE-EARTH COMPLEXES; LANTHANIDE; ENHANCEMENT; LIGANDS; ACID;

D O I：

10.1007/s10853-013-7325-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of Sm (x) Tb1-x (TTA)(3)Phen (x = 1.0, 0.9, 0.7, 0.5, 0.3, 0.1, 0) complexes was synthesized by wet chemical method and characterized using Fourier transform infrared spectroscopy and fluorescence spectroscopy. The IR absorption spectra indicate that alpha-thenoyltrifluoroacetone was coordinated to the rare earth ions and that chemical bonds were formed between rare earth ions and the nitrogen atoms in 1,10-Phenanthroline (Phen). The fluorescence spectra of the complexes indicate that the emission intensity of Sm3+ was enhanced by the addition of substitutive Tb3+. These data show that not only the ligands (TTA and Phen) but also Tb3+ could absorb and transmit energy to Sm3+ in the complexes. Formation of dual-core complexes appears to be responsible for co-fluorescence, which can greatly promote the illuminant ability of Sm (TTA)(3)Phen complex. After further encapsulation by SiO2, the Sm (x) Tb1-x (TTA)(3)Phen@SiO2 core-shell structure was very stable to UV light.

引用

页码：5309 / 5315

页数：7

共 16 条

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