Synthesis and luminescent properties of GdSrAl3O7:Tb3+ phosphor under VUV/LJV excitation

被引：25

作者：

Zhou, Liya ^{[1
,2
,3
]}

Choy, Wallace C. H. ^{[2
]}

Shi, Jianxin ^{[3
]}

Gong, Menglian ^{[3
]}

Liang, Hongbin ^{[3
]}

机构：

[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China

[2] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

[3] Sun Yat Sen Univ, Sch Chem & Chem Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 463卷 / 1-2期

关键词：

sol-gel processes; luminescence; phosphors;

D O I：

10.1016/j.jallcom.2007.09.002

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：

Superfine powder of Tb3+ ion-doped aluminates phosphors, GdSrAl3O7:Tb3+ was synthesized with a precursor prepared by an EDTA-sol-gel method at 900 degrees C. Field-emission scanning electron-microscopy (FE-SEM) observation indicated a narrow size-distribution of about 150-300 nm for the particles with elliptical shape. Upon excitation with vacuum ultraviolet (VUV) and near UV light excitation, the phosphors show a strong emission line at around 542 nm corresponding to the D-5(4) --> F-7(5) transition of Tb3+, and the highest PL intensity at 542 nm was found at a content of about 12 mol% Tb3+. As the Tb3+ concentration increases, Tb ions strongly cross-relaxation interact resulting in a decrease of the lifetime. The results reveal that GdSrAl3O7:Tb3+ would be a promising green phosphor for PDP application. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：302 / 305

页数：4

共 14 条

[1] Photoluminescence of new fluorophosphate glasses containing a high concentration of terbium(III) ions [J].

DuhamelHenry, N ;

Adam, JL ;

Jacquier, B ;

Linares, C .

OPTICAL MATERIALS, 1996, 5 (03) :197-207

[2] Phosphors for plasma display panels [J].

Kim, CH ;

Kwon, IE ;

Park, CH ;

Hwang, YJ ;

Bae, HS ;

Yu, BY ;

Pyun, CH .

JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 311 (01) :33-39

[3] Emission color tuning from blue to green through cross-relaxation in heavily Tb3+-doped YAlO3 [J].

Kim, GC ;

Park, HL ;

Kim, TW .

MATERIALS RESEARCH BULLETIN, 2001, 36 (09) :1603-1608

[4] Luminescence of Eu3+, Tb3+ and Tm3+ in SrLaGa3O7 [J].

Kubota, S ;

Izumi, M ;

Yamane, H ;

Shimada, M .

JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 283 (1-2) :95-101

[5] VUV-UV excited luminescent properties of calcium borophosphate doped with rare earth ions [J].

Liang, HB ;

Zeng, QG ;

Tao, Y ;

Wang, SB ;

Su, Q .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2003, 98 (03) :213-219

[6] Combustion synthesis of phosphors for plasma display panels [J].

Mahakhode, J. G. ;

Dhoble, S. J. ;

Joshi, C. P. ;

Moharil, S. V. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 438 (1-2) :293-297

[7] VUV excitation of Y3Al5O12:: Tb phosphor prepared by a sol-gel process [J].

Park, CH ;

Park, SJ ;

Yu, BY ;

Bae, HS ;

Kim, CH ;

Pyun, CH ;

Guang-Yan, H .

JOURNAL OF MATERIALS SCIENCE LETTERS, 2000, 19 (04) :335-338

[8] RE-activated lanthanide phosphate phosphors for PDP applications [J].

Rao, RP ;

Devine, DJ .

JOURNAL OF LUMINESCENCE, 2000, 87-9 :1260-1263

[9] Rare earth phosphors: fundamentals and applications [J].

Ronda, CR ;

Justel, T ;

Nikol, H .

JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 275 :669-676

[10]

Smirnov Yu. E., 2002, ZH OBSHCH KHIM, V72, P1954

← 1 2 →