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1. 孝感学院 物理系,湖北 孝感,432000
2. 长春理工大学 材料系,吉林 长春,130022
收稿日期:2008-04-14,
修回日期:1900-01-02,
网络出版日期:2009-08-30,
纸质出版日期:2009-08-30
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吕 昊, 刘爱梅, 熊平凡, 等. 温度对长余辉发光玻璃发光性能的影响[J]. 发光学报, 2009,30(4):554-558.
LU Hao, LIU Ai-mei, XIONG Ping-fan, et al. Temperature Impact on Luminescence Performances of Long-lasting Afterglow Glass[J]. Chinese journal of luminescence, 2009, 30(4): 554-558.
在还原气氛下
制备了稀土Eu
2
O
3
Dy
2
O
3
掺杂的铝硅酸盐长余辉发光玻璃。分析了不同温度对SrAl
2
O
4
: Eu
Dy发光玻璃的余辉发光的影响
比较了SrAl
2
O
4
: Eu和SrAl
2
O
4
: Eu
Dy发光玻璃的余辉发光的时间积分强度。结果表明:SrAl
2
O
4
: Eu
Dy长余辉发光玻璃的发射光谱存在455
515 nm两个发射峰值
并且其余辉衰减正比于
t
-0.8
。SrAl
2
O
4
: Eu
Dy长余辉发光玻璃余辉发光时间积分强度在150 K附近开始增加
并在275 K达到最大;Dy
3+
离子是造成空穴陷阱的主要原因。
A series of luminosilicate glass samples doped with Eu
2+
and Dy
3+
were prepared under reducing atmosphere. The impacts of temperatures on luminescence performances of long-lasting afterglow glass were analyzed. The time-integrated intensities of afterglow in SrAl
2
O
4
: Eu and SrAl
2
O
4
: Eu
Dy long-lasting afterglow glasses were compared. Results showed the emission spectra have two broad bands peaked at 455 and 515 nm and the afterglow decay is in proportion to
t
-0.8
. The time-integrated intensity of afterglow increases at around the temperature of 150 K
and reaches the maximum at around 275 K. The hole traps originate from Dy
3+
ions.
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. Zhang Xiyan, Lu Liping. Rare Earth Luminescence Material [M]. Beijing: Defense Industry Press, 2005, 119.
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