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收稿日期:2009-04-01,
修回日期:1900-01-02,
网络出版日期:2010-02-20,
纸质出版日期:2010-02-20
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周新木;曾慧慧. 红色长余辉材料Y<sub>2</sub>O<sub>2</sub>S : Eu,Si,<em>M 的制备及发光性能</em>[J]. 发光学报, 2010,31(1): 59-63
ZHOU Xin-mu;ZENG Hui-hui. Synthesis and Characterization of New Long Lasting Red Phosphors Y<sub>2</sub>O<sub>2</sub>S : Eu,Si,<em>M(M</em>=Mg,Ca,Sr,Ba)[J]. 发光学报, 2010,31(1): 59-63
采用高温固相法合成了红色长余辉材料Y
2
O
2
S : Eu
Si
M(M
=Mg
Ca
Sr
Ba)
利用X晶体衍射、发光光谱、热释光测量等对材料的性能进行了表征。结果分析表明:Y
2
O
2
S : Eu
Si
M(M
=Mg
Ca
Sr
Ba)长余辉材料的最大荧光发射和余辉发射峰完全一致都位于627 nm
产生红光发射
是典型的Eu
3+
离子的
5
D
0
-
7
F
2
跃迁。激发停止后
能够产生较好的余辉性能。碱土金属离子能够增强其荧光发射峰强度并对余辉性能有一定促进作用
其中以Mg
2+
最好
其次是Ba
2+
。
Y
2
O
2
S : Eu
Si
M(M
=Mg
Ca
Sr
Ba) long lasting red luminescence phosphors were synthesized by solid state reaction and analyzed by means of XRD
photoluminescence (PL)
thermo luminescence
etc.
The results indicate that the strongest emission of both emission spectrum and afterglow spectrum peaks at around 627.0 nm
which is assigned to electric dipole
5
D
0
7
F
2
transition of Eu
3+
which behaves excellent afterglow property. The doping of alkaline earth ions improves the PL intensity and the afterglow property of the Y
2
O
2
S : Eu
Si
M(M
=Mg
Ca
Sr
Ba) phosphors. Of all
the Mg-doped sample shows the best property
the next one is the Ba-doped material.
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. Li Xiaojuan, Chen Baojiu, Lin Hai. Deposition and effective red emission of Eu3+-doped YxTixO0.5x crystal phosphor film [J]. Chin. J. Lumin.(发光学报), 2008, 29 (1):89-93 (in Chinese).
. Zhou Liang, Zhou Yonghui, Zheng Youxuan, et al. Long lasting phosphorescent properties of β-Zn3(PO4)2 ∶ Mn2+ ,B3+ materials [J]. Chin. J. Lumin.(发光学报), 2008, 29 (6):1008-1012 (in Chinese).
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