Long-Lasting Phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ Phases for X-Ray and Cathode Ray Tubes

被引：15

作者：

Wang, Meiyuan ^{[1
,2
]}

Zhang, Xia ^{[1
]}

Hao, Zhendong ^{[1
]}

Ren, Xinguang ^{[1
]}

Luo, Yongshi ^{[1
]}

Zhao, Haifeng ^{[1
]}

Wang, Xiaojun ^{[3
]}

Zhang, Jiahua ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130033, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2010年 / 157卷 / 02期

基金：

中国国家自然科学基金;

关键词：

barium compounds; cathode-ray tubes; crystal structure; europium; phosphorescence; phosphors; powder technology; thermoluminescence; X-ray tubes; LUMINESCENCE PROPERTIES; RED; CA; SR; BA;

D O I：

10.1149/1.3267513

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report the long-lasting bluish-green phosphorescence for X-ray or cathode ray tubes in the phosphors with compositions of either Ba2SiO4:0.01Eu(2+)-xSi(3)N(4) (x=0-1) or 2BaCO(3)-ySi(3)N(4):0.01Eu(2+) (y=1/6-1) synthesized by a solid-state reaction. By tuning the Si3N4 content, the phosphorescence may originate from Eu2+ in BaSi2O2N2 (peaking at 490 nm), Ba2SiO4 (505 nm), and Ba3SiO5 (590 nm) phases. The strong phosphorescence of the Ba2SiO4:Eu2+ phase in 2BaCO(3)-ySi(3)N(4):0.01Eu(2+) is attributed to N substitution for O to generate a shallow trap. In Ba2SiO4:0.01Eu(2+)-xSi(3)N(4), however, N prefers reacting with Ba2SiO4 to form BaSi2O2N2, thereby exhibiting a strong phosphorescence of the BaSi2O2N2:Eu2+ phase but a weak phosphorescence of the Ba2SiO4:Eu2+ phase.

引用

页码：H178 / H181

页数：4

共 18 条

[1] Color Point Tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for White Light LEDs [J].

Bachmann, Volker ;

Ronda, Cees ;

Oeckler, Oliver ;

Schnick, Wolfgang ;

Meijerink, Andries .

CHEMISTRY OF MATERIALS, 2009, 21 (02) :316-325

[2] Mechanism of phosphorescence appropriate for the long-lasting phosphors Eu2+-doped SrAl2O4 with codopants Dy3+ and B3+ [J].

Clabau, F ;

Rocquefelte, X ;

Jobic, S ;

Deniard, P ;

Whangbo, MH ;

Garcia, A ;

Le Mercier, T .

CHEMISTRY OF MATERIALS, 2005, 17 (15) :3904-3912

[3] Luminescent properties of Sr2MgSi2O7 and Ca2MgSi2O7 long lasting phosphors activated by Eu2+, Dy3+ [J].

Fei, Q ;

Chang, CK ;

Mao, DL .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 390 (1-2) :133-137

[4] Structure elucidation of BaSi2O2N2 - A host lattice for rare-earth doped luminescent materials in phosphor-converted (pc)-LEDs [J].

Kechele, Juliane A. ;

Oeckler, Oliver ;

Stadler, Florian ;

Schnick, Wolfgang .

SOLID STATE SCIENCES, 2009, 11 (02) :537-543

[5] Trapping effects in CdSiO3:In3+ long afterglow phosphor [J].

Department of Chemistry, Jinan University, Guangzhou 510632, China .

Chin. Phys. Lett., 2006, 1 (204-206) :204-206

[6] Pink light emitting long-lasting phosphorescence in Sm3+-doped CdSiO3 [J].

Lei, BF ;

Liu, YL ;

Liu, H ;

Ye, ZR ;

Shi, CS .

JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (4-5) :1333-1337

[7] Luminescence properties of Eu2+-activated alkaline-earth silicon-oxynitride MSi2O2-δN2+2/3δ (M = Ca, Sr, Ba):: A promising class of novel LED conversion phosphors [J].

Li, YQ ;

Delsing, ACA ;

de With, G ;

Hintzen, HT .

CHEMISTRY OF MATERIALS, 2005, 17 (12) :3242-3248

[8] Preparation and characterization of long afterglow M2MgSi2O7-based (M: Ca, Sr, Ba) photoluminescent phosphors [J].

Lin, YH ;

Nan, CW ;

Zhou, XS ;

Wu, JB ;

Wang, HF ;

Chen, DP ;

Xu, SM .

MATERIALS CHEMISTRY AND PHYSICS, 2003, 82 (03) :860-863

[9] Luminescent properties of a white afterglow phosphor CdSiO3:Dy3+ [J].

Liu, YL ;

Lei, BF ;

Shi, CS .

CHEMISTRY OF MATERIALS, 2005, 17 (08) :2108-2113

[10] New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+ [J].

Matsuzawa, T ;

Aoki, Y ;

Takeuchi, N ;

Murayama, Y .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (08) :2670-2673

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