Improved photoluminescence properties of a novel europium(III) complex covalently grafted to organically modified silicates

	Improved photoluminescence properties of a novel europium(III) complex covalently grafted to organically modified silicates
其他题名	论文其他题名
	Wang Y. H.; Li B.; Zhang L. M.; Zuo Q. H.; Liu L. N.; Li P.
	2010
发表期刊	Journal of Colloid and Interface Science
ISSN	0021-9797
卷号	349 期号:2 页码:505-511
摘要	A series of novel organic-inorganic hybrid materials with a Eu(III)complex [(C(2)H(5))(4)N][Eu(DBM)(3)(DBM-OH)] (DBM = dibenzoylmethanate, DBM-OH = p-hydroxydibenzoylmethanate) covalently bonded into vinyl-modified silica networks have been successfully assembled through a sol-gel process. DBM-OH was grafted to the coupling agent 3-(triethoxysilyl)propylisocyanate (TESPIC), and the as-obtained molecular precursor DBM-Si was used as a bridge molecule both coordinate to Eu(3+) and forming an inorganic Si-O network with tetraethoxysilane (TEOS) and vinyltriethoxysilane (VTES) after cohydrolysis and co-condensation processes. The luminescence properties of VTES/TEOS composite hybrid materials were systematically studied in comparison to those of TEOS-derived hybrid material and pure [(C(2)H(5))(4)N][Eu(DBM)(4)], respectively. The results indicate that the luminescent quantum efficiencies of VTES/TEOS composite hybrid materials are greatly improved. And it is interesting to find that the luminescent intensity of VTES/TEOS composite hybrid material is enhanced by optimizing the molar ratio of VTES to TEOS (VTES:TEOS = 4:6) by 3.3 and 2.4 times compared with TEOS-derived hybrid material and pure [(C(2)H(5))(4)N][Eu(DBM)(4)], respectively. In addition, the thermal stability of the emission was also improved considerably. The results presented in this paper indicate that the use of vinyl-modified silicates as a matrix opens the door to improving the photoluminescence properties of Eu(III) complexes. (C) 2010 Elsevier Inc. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26192
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang Y. H.,Li B.,Zhang L. M.,et al. Improved photoluminescence properties of a novel europium(III) complex covalently grafted to organically modified silicates[J]. Journal of Colloid and Interface Science,2010,349(2):505-511.
APA	Wang Y. H.,Li B.,Zhang L. M.,Zuo Q. H.,Liu L. N.,&Li P..(2010).Improved photoluminescence properties of a novel europium(III) complex covalently grafted to organically modified silicates.Journal of Colloid and Interface Science,349(2),505-511.
MLA	Wang Y. H.,et al."Improved photoluminescence properties of a novel europium(III) complex covalently grafted to organically modified silicates".Journal of Colloid and Interface Science 349.2(2010):505-511.

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