Preparation and luminescent properties of Tb3+ doped Y2O2SO4 microflakes

被引：7
作者：
Xing, T. H. [1 ]
Song, L. X. [1 ]
Xiong, J. [1 ]
Cao, H. B. [1 ]
Du, P. F. [1 ]
机构：
[1] Zhejiang Sci Tech Univ, Key Lab Adv Textile Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Zhejiang, Peoples R China
来源：
ADVANCES IN APPLIED CERAMICS | 2013年 / 112卷 / 08期
关键词：
Electrospinning; Nanofibre; Y2O2SO4:Tb3+; Microflake; Photoluminescence; THERMAL-DECOMPOSITION; OXYGEN-STORAGE; PHASE; PHOSPHORS;
D O I：
10.1179/1743676113Y.0000000112
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Tb3+ doped Y2O2SO4 (Y2O2SO4:Tb3+) microflakes were prepared by a combination method of electrospinning and calcination. The two-dimensional microflakes had smooth surface and high radial/axial ratio. Crystal structures of the Y2O2SO4: Tb3+ microflakes resulted in layer by layer growth in axial direction. A possible formation mechanism was proposed on the basis of experimental results, which indicated that poly(vinyl pyrrolidone) played the role of the nanostructure directing template and revealed the growth priority in radial direction. The microflakes showed a favourable fluorescent property symbolised by the characteristic green emission (541 nm) resulting from the D-5(4)-> F-7(5) transition of Tb3+ ions under 229 nm ultraviolet excitation. The maximum intensity of Tb3+ emission of the Y2O2SO4:Tb3+ microflakes was 2.3 times stronger than that of the Y2O2SO4:Tb3+ bulk powders with the same doping concentration.
引用
收藏
页码：455 / 459
页数：5
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