Photoluminescent layered lanthanide silicate nanoparticles

被引：26

作者：

Ananias, Duarte ^{[1
,2
,3
]}

Ferdov, Stanislav ^{[1
,2
]}

Paz, Filipe A. Almeida ^{[1
,2
]}

Ferreira, Rule A. Sa ^{[1
,2
]}

Ferreira, Artur

Geraldes, Carlos F. G. C. ^{[3
]}

Carlos, Luis D. ^{[1
,2
]}

Lin, Zhi ^{[1
,2
]}

Rocha, Joao ^{[1
,2
]}

机构：

[1] Univ Aveiro, CICECO, Dept Chem & Phys, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, CICECO, ESTGA, P-3810193 Aveiro, Portugal

[3] Univ Coimbra, Dept Biochem, P-3001401 Coimbra, Portugal

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 01期

关键词：

D O I：

10.1021/cm702524n

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The first examples of nanoparticles of pure layered Ln(2)(SiO4H)(OH)(2)(H2O)Cl (where Ln = Eu, Gd, and Tb) and mixed microcrystalline layered lanthanide silicates containing different Eu/Gd and Tb/Gd ratios have been reported. The crystal structure of these silicates has been solved from synchrotron powder X-ray diffraction data. These materials display interesting and tuneable photoluminescence (PL) properties, such as energy transfer between different Ln(3+) centers, illustrated here with the pairs Eu3+/Gd3+ and Tb3+/Gd3+. The PL properties of the mixed EU3+/Gd3+ sample change upon F- for Cl- ion exchange, and this raises the possibility that this material may be exploited for sensing these ions.

引用

页码：205 / 212

页数：8

共 41 条

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