Luminescence properties of YVO4:Ln (Ln = Nd, Yb, and Yb-Er) nanoparticles

被引：64

作者：

Buissette, V ^{[1
]}

Huignard, A

Gacoin, T

Boilot, JP

Aschehoug, P

Viana, B

机构：

[1] Ecole Polytech, CNRS, UMR 7643, Lab Phys Matiere Condensee, F-91128 Palaiseau, France

[2] ENSCP, CNRS, UMR 7574, Lab Chim Appl Etat Solide, F-75005 Paris, France

来源：

SURFACE SCIENCE | 2003年 / 532卷

关键词：

luminescence; yttrium; vanadium;

D O I：

10.1016/S0039-6028(03)00203-6

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：

Concentrated colloidal solutions of well dispersed YVO4:Ln (Ln = Nd, Yb, and Yb-Er) nanocrystals are synthesized through the precipitation of citrate complexes of rare earth salts with sodium orthovanadate. Luminescence spectra of aqueous suspensions of YVO4:Nd or Yb are very similar to the bulk material, with lower lifetimes of the emitting level. After heating at 600 degreesC, the luminescence properties of silica capped YVO4:Ln nanoparticles are significantly improved. In these conditions, YVO4:Yb, Er nanoparticles exhibit green up-conversion luminescence and 1.55 mum emission of the erbium ion under infrared excitation of the ytterbium. ion. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：444 / 449

页数：6

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