Preparation and characterization of nanoscale lutetium aluminium garnet (LuAG) powders doped by Eu3+

被引：36

作者：

Uhlich, Dominik

Huppertz, P.

Wiechert, D. U.

Juestel, Thomas

机构：

[1] Univ Appl Sci Munster, FB Chemieingenieurwesen, D-48565 Steinfurt, Germany

[2] Philips Res Labs, D-52066 Aachen, Germany

来源：

OPTICAL MATERIALS | 2007年 / 29卷 / 11期

关键词：

co-precipitation; lutetium aluminum garnet (LuAG); nanoscale particles; rare earth doping; optical properties;

D O I：

10.1016/j.optmat.2006.07.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanoscale powders of Lu3Al5O12:Eu were synthesized by a standard precipitation process using (NH4)HCO3. Characterisation of the nanocrystalline particles was done with respect to particle morphology and luminescence spectra. The mean particle diameter was reduced by means of a dispersing additive during the precipitation process. A procedure was developed to gain particles in the particle size range of 20-50 mn. Additionally, the reactivity of the precipitated precursor could be enhanced to such an extent that phase transformation into the garnet phase takes place at 900 degrees C. The optical properties of the doped nanoscale lutetium garnet are identical with microscale powders. Eu3+ doped nanoscale lutetium garnet showed quantum efficiencies up to 40%. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1505 / 1509

页数：5

共 15 条

[1] Variation of fluorescence lifetimes and Judd-Ofelt parameters between Eu3+ doped bulk and nanocrystalline cubic LU2O3 [J].