Synthesis and characterization of monodispersed BaSO4/Y2O3:Eu3+ core-shell submicrospheres

被引：17

作者：

Zhang, Ming ^{[1
]}

Li, Xinhai ^{[1
]}

Wang, Zhixing ^{[1
]}

Guo, Huajun ^{[1
]}

Li, Jinhui ^{[1
]}

Liu, Wanrong ^{[1
]}

机构：

[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Peoples R China

来源：

POWDER TECHNOLOGY | 2009年 / 195卷 / 02期

关键词：

Phosphor; Y2O3:Eu3+; BaSO4; Core-shell; Coating; CORE/SHELL NANOPARTICLES; PHOTOLUMINESCENCE; SURFACE;

D O I：

10.1016/j.powtec.2009.04.004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Spherical BaSO4 particles have been coated with Y2O3:Eu3+ phosphor layers (BaSO4/Y2O3:Eu3+) by the wet chemical method. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dipersive spectroscopy (EDS), photoluminescence spectra were utilized to characterize the BaSO4/Y2O3:Eu3+ core-shell-structured phosphor particles. The obtained core-shell phosphors consist of well dispersed submicron spherical particles with narrow size distribution. XRD result shows that no reaction occurred between the BaSO4 cores and the Y2O3:Eu3+ shells even after annealing at 1400 degrees C. TEM and EDS results show that BaSO4 particles are well coated with the shell of Y2O3:Eu3+. The BaSO4/Y2O3:Eu3+ core-shell particles show a red emission corresponding to D-5(0)-F-7(2) of Eu3+ under the excitation of ultraviolet. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：69 / 72

页数：4

共 19 条

[11]

NIKIFOR R, 2006, CHEM PHYS LETT, V428, P134

[12]

Rogach A, 2000, ADV MATER, V12, P333, DOI 10.1002/(SICI)1521-4095(200003)12:5<333::AID-ADMA333>3.0.CO

[13]

2-X

[14] Low-voltage cathodoluminescent red emitting phosphors for field emission displays [J].

Silver, Jack ;

Withnall, Robert ;

Lipman, Anthony ;

Ireland, Terry G. ;

Fern, George R. .

JOURNAL OF LUMINESCENCE, 2007, 122 (562-566) :562-566

[15] Surface Eu3+ ions are different than "bulk" Eu3+ ions in crystalline doped LaF3 nanoparticles [J].

Sudarsan, V ;

van Veggel, FCJM ;

Herring, RA ;

Raudsepp, M .

JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (13) :1332-1342

[16] Photoluminescence and cathodoluminescence properties of Y2O3: Eu nanophosphors prepared by combustion synthesis [J].

Vu, Nguyen ;

Anh, Tran Kim ;

Yi, Gyu-Chul ;

Strek, W. .

JOURNAL OF LUMINESCENCE, 2007, 122 (776-779) :776-779

[17] Monodisperse spherical core-shell-structured phosphors obtained by functionalization of silica spheres with Y2O3:Eu3+ layers for field emission displays -: art. no. 181907 [J].

Wang, H ;

Lin, CK ;

Liu, XM ;

Lin, J ;

Yu, M .

APPLIED PHYSICS LETTERS, 2005, 87 (18) :1-3

[18] Sol-gel synthesis and photoluminescence properties of spherical SiO2@LaPO4:Ce3+/Tb3+ particles with a core-shell structure [J].

Yu, M. ;

Wang, H. ;

Lin, C. K. ;

Li, G. Z. ;

Lin, J. .

NANOTECHNOLOGY, 2006, 17 (13) :3245-3252

[19]

Zhang M, 2008, RARE METAL MAT ENG, V37, P2065

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