Photoluminescence green in microspheres of CaWO4:Tb3+ processed in conventional hydrothermal

被引：61

作者：

Liao, Jinsheng ^{[1
]}

Qiu, Bao ^{[1
]}

Wen, Herui ^{[1
]}

You, Weixiong ^{[1
]}

机构：

[1] Jiangxi Univ Sci & Technol, Fac Chem Engn & Mat Sci, Ganzhou 341000, Jiangxi, Peoples R China

来源：

OPTICAL MATERIALS | 2009年 / 31卷 / 10期

关键词：

Photoluminescence; Terbium; Tungstates; Phosphors; LUMINESCENCE; PHOSPHORS; PARTICLES; EMISSION; GROWTH; SIZE; EU3+; RE;

D O I：

10.1016/j.optmat.2009.02.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Green-phosphor spherical microparticles (2-4 mu m in diameter) of CaWO4:Tb3+ (CWO:Tb) exhibiting excellent emission at 545 nm have been synthesized by a conventional hydrothermal process directly without further sintering treatment. X-ray diffraction (XRD), scanning electron microscope (SEM), photoluminescence excitation and emission spectra and decay curve were used to characterize the CWO:Tb phosphors. Because 12 at.% CWO:Tb phosphor shows broad and strong absorption in UV region, exhibits intensive green emission under 254 nm excitation in comparison with the commercial green fluorescent lamp phosphor (LaPO4:CeTb), it is considered to be a new promising phosphor for fluorescent lamps application. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1513 / 1516

页数：4

共 24 条

[1]

Blasse G., 1983, REV INORG CHEM, V15, P319

[2] Synthesis, characterization, structural refinement and optical absorption behavior of PbWO4 powders [J].

Cavalcante, L. S. ;

Sczancoski, J. C. ;

Albarici, V. C. ;

Matos, J. M. E. ;

Varela, J. A. ;

Longo, E. .

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2008, 150 (01) :18-25

[3]

CUI C, 2009, MATER LETT, V62, P2222

[4] GREEN-LUMINESCENT (LA,CE)PO4-TB PHOSPHORS FOR SMALL SIZE FLUORESCENT LAMPS [J].

HASHIMOTO, N ;

TAKADA, Y ;

SATO, K ;

IBUKI, S .

JOURNAL OF LUMINESCENCE, 1991, 48-9 :893-897

[5] Preparation of Y2O3:Eu3+ phosphor fine particles using an emulsion liquid membrane system [J].

Hirai, T ;

Hirano, T ;

Komasawa, I .

JOURNAL OF MATERIALS CHEMISTRY, 2000, 10 (10) :2306-2310

[6] Spectroscopic properties of Er3+ transitions in SrWO4 crystal -: art. no. 093525 [J].

Jia, GH ;

Tu, CY ;

Li, JF ;

Lu, X ;

You, ZY ;

Zhu, ZJ ;

Wu, BC .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (09)

[7]

Justel T., 1998, ANGEW CHEM, V110, P3250

[8] Luminescence investigation of Eu3+ ion in the RE2(WO4)3 matrix (RE = La and Gd) produced using the Pechini method [J].

Kodaira, CA ;

Brito, HF ;

Felinto, MCFC .

JOURNAL OF SOLID STATE CHEMISTRY, 2003, 171 (1-2) :401-407

[9] Hydrothermal synthesis and luminescence of CaMO4:RE3+ (M = W, Mo; RE = Eu, Tb) submicro-phosphors [J].

Lei, Fang ;

Yan, Bing .

JOURNAL OF SOLID STATE CHEMISTRY, 2008, 181 (04) :855-862

[10] Growth of highly crystalline CaMoO4:Tb3+ phosphor layers on spherical SiO2 particles via sol-gel process:: Structural characterization and luminescent properties [J].

Li, Guangzhi ;

Wang, Zhenling ;

Quan, Zewei ;

Li, Chunxia ;

Lin, Jun .

CRYSTAL GROWTH & DESIGN, 2007, 7 (09) :1797-1802

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