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1. 中国科学院长春应用化学研究所
2. 中国科学院稀土化学与物理开放实验室
收稿日期:1988-05-09,
纸质出版日期:1989-11-30
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潘利华, 董向明, 张思远. Sm<sub>x</sub>La<sub>1-x</sub>P<sub>5</sub>O<sub>14</sub>和Dy<sub>x</sub>Y<sub>1-x</sub>P<sub>5</sub>O<sub>14</sub>晶体的荧光寿命研究[J]. 发光学报, 1989,10(4): 296-303
Pan Lihua, Dong Xiangming, Zhang Siyuan. STUDY OF FLUORESCENT LIFETIMES OF Sm<sub>x</sub>La<sub>1-x</sub>P<sub>5</sub>O<sub>14</sub> AND Dy<sub>x</sub>Y<sub>1-x</sub>P<sub>5</sub>O<sub>14</sub> SINGLE CRYSTALS[J]. Chinese Journal of Luminescence, 1989,10(4): 296-303
潘利华, 董向明, 张思远. Sm<sub>x</sub>La<sub>1-x</sub>P<sub>5</sub>O<sub>14</sub>和Dy<sub>x</sub>Y<sub>1-x</sub>P<sub>5</sub>O<sub>14</sub>晶体的荧光寿命研究[J]. 发光学报, 1989,10(4): 296-303 DOI:
Pan Lihua, Dong Xiangming, Zhang Siyuan. STUDY OF FLUORESCENT LIFETIMES OF Sm<sub>x</sub>La<sub>1-x</sub>P<sub>5</sub>O<sub>14</sub> AND Dy<sub>x</sub>Y<sub>1-x</sub>P<sub>5</sub>O<sub>14</sub> SINGLE CRYSTALS[J]. Chinese Journal of Luminescence, 1989,10(4): 296-303 DOI:
本文用脉冲衰减法和时间分辨荧光光谱法测量了六种不同稀土离子浓度的Sm
x
La
1-x
P
5
O
4
晶体的
4
G
5/2
→
6
H
J
(
J
=5/2
7/2
9/2
11/2)四个能级和七种不同稀土离子浓度的Dy
x
Y
1-x
P
5
O
14
晶体的
4
F
9/2
→
6
H
J
(
J
=15/2
13/2
11/2
9/2)四个能级的荧光寿命和荧光强度。结果指出
在这类晶体中
Sm
3+
和Dy
3+
的荧光寿命随着离子的浓度增加而变短
存在着严重的荧光浓度猝灭现象。最后还讨论了浓度与寿命
寿命与荧光强度的关系。
In this paper
fluorescent lifetimes of Sm
3+
in Sm
x
La
1-x
P
5
O
14
single crystals originating from transitions between
4
G
5/2
and
6
H
J
(
J
=5/2
7/2
9/2
11/2) energy levels and Dy
3+
in Dy
x
Y
1-x
P
5
O
14
single crystal originating from transitions between
4
F
9/2
and
6
H
J
(
J
=15/2
13/2
11/2
9/2) energy levels at several concentrations were measured and investigated in detail.The measurement of lifetime was completed by pulse decay curve method and time resolved fluorescent spectrum method
the relative crror
<
15%. The set-up of lifetime measuring consists of a N
2
laser and a photoelectricity detecting system with pulsed gated Boxcar averager. Measurement of fluorescent intensities of the rare earth pentaphosphate single crystals was completed by MPF-4 Fluorimetcr.
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