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重庆大学光电工程学院 光电技术与系统教育部重点实验室 重庆,400044
纸质出版日期:2012-11-10,
收稿日期:2012-7-21,
修回日期:2012-9-6,
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任林娇, 杜晓晴, 雷小华, 金雷, 陈伟民. Dy<sup>3+</sup>含量对Eu<sup>2+</sup>, Dy<sup>3+</sup>共掺高硅氧发光玻璃发光性能的影响[J]. 发光学报, 2012,(11): 1161-1165
REN Lin-jiao, DU Xiao-qing, LEI Xiao-hua, JIN Lei, CHEN Wei-min. Effect of Dy<sup>3+</sup> Content on Luminescent Properties of Eu<sup>2+</sup>, Dy<sup>3+</sup> Co-doped High Silica Luminescence Glass[J]. Chinese Journal of Luminescence, 2012,(11): 1161-1165
任林娇, 杜晓晴, 雷小华, 金雷, 陈伟民. Dy<sup>3+</sup>含量对Eu<sup>2+</sup>, Dy<sup>3+</sup>共掺高硅氧发光玻璃发光性能的影响[J]. 发光学报, 2012,(11): 1161-1165 DOI: 10.3788/fgxb20123311.1161.
REN Lin-jiao, DU Xiao-qing, LEI Xiao-hua, JIN Lei, CHEN Wei-min. Effect of Dy<sup>3+</sup> Content on Luminescent Properties of Eu<sup>2+</sup>, Dy<sup>3+</sup> Co-doped High Silica Luminescence Glass[J]. Chinese Journal of Luminescence, 2012,(11): 1161-1165 DOI: 10.3788/fgxb20123311.1161.
通过控制Dy
3+
的掺杂浓度
制备出了不同浓度的Eu
2+
Dy
3+
单掺和共掺高硅氧发光玻璃
测试其激发和发射光谱
讨论了Dy
3+
浓度对Eu
2+
Dy
3+
共掺样品发光性质的影响。结果表明
Eu
2+
Dy
3+
共掺高硅氧发光玻璃中存在Dy
3+
向Eu
2+
的无辐射能量传递现象
且Dy
3+
的引入会使高硅氧发光玻璃中Eu—O的共价作用减弱
造成Eu
2+
发射峰蓝移;随着Dy
3+
浓度的增加
Dy
3+
→Eu
2+
能量传递增强
Eu
2+
发光增强;Dy
3+
含量继续增加
则Dy
3+
发光出现浓度猝灭
且Dy
3+
→Eu
2+
能量传递减弱。
Eu
2+
doped
Dy
3+
doped and Eu
2+
Dy
3+
co-doped high silica luminescence glasses were prepared. By controlling the doping concentration of Dy
3+
the different mole ratios of Dy
3+
to Eu
2+
were researched. The effect of Dy
3+
on luminescence properties of Eu
2+
Dy
3+
co-doped high silica glass was studied by means of excitation and emission spectra. The results show that nonradioactive energy transfer from Dy
3+
to Eu
2+
occurred in Eu
2+
Dy
3+
co-doped high silica glass. By co-doping with Dy
3+
the covalent strength of the Eu-O bond weakened
which causes blue shift of the emission peak of Eu
2+
. With the increasing concentration of Dy
3+
the energy transfer process from Dy
3+
to Eu
2+
is enhanced
and the emission intensity of Eu
2+
increase. When the concentration of Dy
3+
continued increase
the luminescence of Dy
3+
decrease because of the effect of concentration quenching and the impaired energy transfer process from Dy
3+
to Eu
2+
.
高硅氧发光玻璃Dy3+Eu2+能量传递浓度猝灭
high silica luminescence glassDy3+Eu2+energy transferconcentration quenching
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