Dispersion of Luminescent Nanoparticles in Different Derivatives of Poly(ethyl methacrylate)

被引：4

作者：

Davion, B. ^{[1
]}

Delhorbe, V. ^{[1
]}

Peralta, S. ^{[1
]}

Goubard, F. ^{[1
]}

Vidal, F. ^{[1
]}

机构：

[1] Univ Cergy Pontoise, Federat Inst Mat FD 4122, LPPI, F-95031 Neuville Sur Oise, Cergy Pontoise, France

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2011年 / 11卷 / 04期

关键词：

Nanocomposite; PHEMA; Lanthanide Oxide; Nanoparticle Dispersion; Quenching Effect; OXIDE NANOPARTICLES; POLYMER; NANOCOMPOSITES; NANOCRYSTALS; COMPOSITES; MORPHOLOGY; PARTICLES; BRUSHES;

D O I：

10.1166/jnn.2011.3595

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gd2O3:Tb(5%) nanoparticles were prepared via the polyol route and dispersed without any stabilizer in several ethyl methacrylate derivatives matrices such as poly(ethyl methacrylate), poly(2-methoxyethyl methacrylate) and poly(2-hydroxyethyl methacrylate) (PHEMA). Nanocomposites were obtained via free-radical polymerization of methacrylic monomers with ethylene glycol dimethacrylate as crosslinker and colloidal solution of Gd2O3:Tb(5%) nanoparticles. Best results are obtained with PHEMA in which the dispersed Gd2O3:Tb(5%) nanoparticles are spherical with a mean diameter of 15 nm, as measured by TEM. The obtained solid Gd2O3:Tb(5%)/PHEMA nanocomposites are highly transparent (in the visible spectral range) and exhibit characteristic photoluminescence of Tb3+ D-5(4)-F-7(J) (J = 6-3), with D-5(4)-F-7(5) strong green emission at 536 nm upon UV excitation. The nanoparticles and nanocomposites have been well characterized by high-resolution transmission electron microscope (TEM), UV/Vis transmission spectra, photoluminescence excitation, and emission spectra.

引用

页码：3208 / 3214

页数：7

共 41 条

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