Cubic or monoclinic Y2O3:Eu3+ nanoparticles by one step flame spray pyrolysis

被引：112
|
作者：
Camenzind, A [1 ]
Strobel, R [1 ]
Pratsinis, SE [1 ]
机构：
[1] ETH, Particle Technol Lab, Inst Proc Engn, Dept Mech & Proc Engn, CH-8092 Zurich, Switzerland
来源：
CHEMICAL PHYSICS LETTERS | 2005年 / 415卷 / 4-6期
关键词：
D O I：
10.1016/j.cplett.2005.09.002
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：
Continuous, single-step synthesis of monocrystalline Y2O3:Eu3+ nanophosphor particles (10-25 nm in diameter and 5 wt% Eu) was achieved by flame spray pyrolysis (FSP). The effect of FSP process parameters on materials properties was investigated by X-ray diffraction (XRD), nitrogen adsorption (BET) and transmission electron microscopy (TEM). Photoluminescence (PL) emission were measured as well as the time-resolved PL-intensity decay. Controlled synthesis of monoclinic or cubic Y2O3:EU3+ nanoparticles was achieved without post-treatment by controlling the high temperature residence time of these particles. The cubic nanoparticles exhibited longer decay times but lower maximum PL intensity than commercial micron-sized bulk Y2O3:Eu3+ phosphor powder. (c) 2005 Elsevier B.V. All rights reserved.
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收藏
页码：193 / 197
页数：5
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