Luminescent properties of Eu3+-activated nanophosphors Ca3Y0.8Gd0.2(VO4)2.4(PO4)0.6: Eu3+ for light-emitting diodes

被引：8

作者：

Huang, Jiaping

Li, Qiuxia

Chen, Donghua ^{[1
]}

机构：

[1] S Cent Univ Nationalities, Coll Chem & Mat Sci, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Hubei, Peoples R China

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 21期

关键词：

Luminescence; Phosphors; Nanomaterials; LEDs;

D O I：

10.1016/j.matlet.2010.07.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Eu3+-doped Ca3Y0.8Gd0.2(VO4)(2.4)(PO4)(0.6) nanophosphors have been prepared by modified solid-state reaction. X-ray powder diffraction, transmission electron microscopy (TEM), photoluminescence excitation and emission spectra were used to characterize the resulting samples. X-ray powder diffraction (XRD) analysis confirmed the formation of YVO4. Photoluminescence (PL) results showed that the phosphor could be efficiently excited by UV-visible light from 350 to 550 nm, exhibiting bright orange-red emission(excited by 397) and red emission(excited by 467), which has potential application as a phosphor for UV and blue GaN-based light-emitting diodes (LEDs). TEM images show that the grain size of Ca3Y0.45Eu0.35Gd0.2(VO4)(2.4) (PO4)(0.6) is about 39 nm, which is in full agreement with the theoretical calculation data from the XRD patterns. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：2334 / 2336

页数：3

共 10 条

[1] Amplification by optical composites [J].

Barber, DB ;

Pollock, CR ;

Beecroft, LL ;

Ober, CK .

OPTICS LETTERS, 1997, 22 (16) :1247-1249

[2] SCINTILLATOR MATERIALS [J].

BLASSE, G .

CHEMISTRY OF MATERIALS, 1994, 6 (09) :1465-1475

[3] New Luminescent Materials [J].

Blasse, G. .

CHEMISTRY OF MATERIALS, 1989, 1 (03) :294-301

[4]

Cullity B. D., 1978, ELEMENTS XRAY DIFFRA

[5] STRUCTURE OF CA3(VO4)2 [J].

GOPAL, R ;

CALVO, C .

ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1973, 137 (01) :67-85

[6]

Hase T., 1990, ADV ELECT ELECT PHYS, V79, P271, DOI DOI 10.1016/S0065-2539(08)60600-9

[7]

Kaminskii A., 1996, CRYSTALLINE LASERS P

[8] Recent achievements in research on phosphors for lamps and displays [J].

Ronda, CR .

JOURNAL OF LUMINESCENCE, 1997, 72-4 :49-54

[9] Novel materials doped with trivalent lanthanides and transition metal ions showing near-infrared to visible photon upconversion [J].

Suyver, JF ;

Aebischer, A ;

Biner, D ;

Gerner, P ;

Grimm, J ;

Heer, S ;

Krämer, KW ;

Reinhard, C ;

Güdel, HU .

OPTICAL MATERIALS, 2005, 27 (06) :1111-1130

[10] Whitlockite solid solutions Ca9-xMxR(PO4)7 (x = 1, 1.5; M = Mg, Zn, Cd; R = Ln, Y) with antiferroelectric properties [J].

Teterskii, A. V. ;

Stefanovich, S. Yu. ;

Lazoryak, B. I. ;

Rusakov, D. A. .

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2007, 52 (03) :308-314

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