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1. 中国科学技术大学国家同步辐射实验室 合肥,230029
2. 中山大学 化学与化学工程学院 光电材料与技术国家重点实验室 生物无机与合成化学教育部重点实验室,广东 广州,510275
收稿日期:2011-01-26,
修回日期:2011-03-23,
网络出版日期:2011-05-22,
纸质出版日期:2011-05-22
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梁宏斌, 田梓峰, 钟玖平, 潘国强, 张国斌, 石军岩, 苏锵. Ce<sup>3+</sup>离子激活的(氟)磷酸盐基质发光材料的光谱特性[J]. 发光学报, 2011,32(5): 411-416
LIANG Hong-bin, TIAN Zi-feng, ZHONG Jiu-ping, PAN Guo-qiang, ZHANG Guo-bin, SHI Jun-yan, SU Qiang. Luminescence of Ce<sup>3+</sup> Activated (Fluoro-) Phosphates Under VUV-UV and X-ray Excitation[J]. Chinese Journal of Luminescence, 2011,32(5): 411-416
梁宏斌, 田梓峰, 钟玖平, 潘国强, 张国斌, 石军岩, 苏锵. Ce<sup>3+</sup>离子激活的(氟)磷酸盐基质发光材料的光谱特性[J]. 发光学报, 2011,32(5): 411-416 DOI: 10.3788/fgxb20113205.0411.
LIANG Hong-bin, TIAN Zi-feng, ZHONG Jiu-ping, PAN Guo-qiang, ZHANG Guo-bin, SHI Jun-yan, SU Qiang. Luminescence of Ce<sup>3+</sup> Activated (Fluoro-) Phosphates Under VUV-UV and X-ray Excitation[J]. Chinese Journal of Luminescence, 2011,32(5): 411-416 DOI: 10.3788/fgxb20113205.0411.
利用高温固相反应方法合成了Ce
3+
离子激活的氟磷酸盐基质发光材料Na
2
Gd
0.99
Ce
0.01
PO
4
F
2
和多磷酸盐基质发光材料
M
Gd
0.99
Ce
0.01
(PO
3
)
4
(
M
=Na
K
Cs)。通过光谱研究发现
在Na
2
Gd
0.99
Ce
0.01
PO
4
F
2
的真空紫外-紫外(VUV-UV)激发光谱上
可以看到Ce
3+
离子中心波长分别在316
266
235
216
206 nm等处的5个fd跃迁激发带
其5d
2
F
J
(
J
=5/2
7/2)发射峰分别位于350
375 nm
由此推测Ce
3+
离子在该氟磷酸盐基质晶格中可能只占据一个格位。研究了Ce
3+
离子激活多磷酸盐样品
M
Gd
0.99
Ce
0.01
(PO
3
)
4
(
M
=Na
K
Cs)在紫外光和X射线激发下的发光性质
发现该系列多磷酸盐样品在X射线激发下有较高的光产额
有可能被发展成为一类性能优良的闪烁体发光材料。
Ce
3+
activated phosphors
fluorophosphate Na
2
Gd
0.99
Ce
0.01
PO
4
F
2
and polyphosphates
M
Gd
0.99
-Ce
0.01
(PO
3
)
4
(
M
=Na
K
Cs)
were prepared using a high-temperature solid-state reaction technique. Five excitation bands were observed at about 316
266
235
216
206 nm from Ce
3+
5d in Na
2
Gd
0.99
Ce
0.01
PO
4
F
2
and two emission bands from Ce
3+
5d-4f were found at about 350
375 nm. On the basis of these observations
it is assumed that Ce
3+
ions occupy one lattice site in Na
2
Gd
0.99
Ce
0.01
PO
4
F
2
. The luminescence of
M
Gd
0.99
Ce
0.01
(PO
3
)
4
(
M
=Na
K
Cs) under X-ray excitation revealed that these phosphors have high light-yields under X-ray excitation
showing that they may be potential scintillation materials.
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