The luminescent properties comparison of RE2O3:Eu(RE=Lu,Y,Sc) with high and low Eu doping concentrations
The luminescent properties comparison of RE2O3:Eu(RE=Lu,Y,Sc) with high and low Eu doping concentrations
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高、低Eu掺杂浓度RE2O3:Eu(RE=Lu,Y,Sc)发光性能对比
DOI：
10.1016/j.jallcom.2018.11.359
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发表时间：
2019-04
影响因子：
6.2
通讯作者：
Jing-Tai Zhao
中科院分区：
文献类型：
--
作者：
Lyuchao Zhuang;He Feng;Shimin Huang;Zhi-Jun Zhang;Wang Yong;Rihua Mao;Jing-Tai Zhao
摘要：采用光学浮区法制备了Eu掺杂浓度高（8%）和低（1%）的RE2O3:Eu （RE = Lu， Y, Sc）单晶闪烁体。对其发光和闪烁特性进行了比较研究。对余辉曲线、光致发光激发和光致发光、光致发光衰减曲线和x射线激发曲线进行了相关测量。高浓度Eu掺杂后，Lu2O3:Eu和Y2O3:Eu的余辉强度明显降低。而对于Sc2O3:Eu，其余辉强度甚至略有增加。高掺杂浓度样品的发光效率由于浓度猝灭而弱于低掺杂浓度样品。综合x射线激发发光结果表明，高浓度或低浓度样品的闪烁发光效率顺序为：Lu2O3:Eu>Y2O3:Eu>Sc2O3:Eu。
Abstract Single crystal scintillators of RE2O3:Eu (RE = Lu, Y, Sc) with high (8%) and low (1%) Eu doping concentration were grown by the optical floating zone method. The luminescence and scintillation properties have been investigated and compared thoroughly. Correlated measurements of afterglow curves, photoluminescence excitation and photoluminescence, photoluminescence decay curves and X-ray excitation curves were performed. Lu2O3:Eu and Y2O3:Eu present significant afterglow intensity decreasing after high Eu concentration doping. While for the Sc2O3:Eu, its afterglow intensity even increases slightly. The luminescence efficiencies of high doping concentration samples are weaker than that of the low concentration ones due to the concentration quenching. The integrated X-ray excitation luminescence reveals the scintillation luminescence efficiencies of samples with the high concentration or the low ones both have the following sequence:Lu2O3:Eu＞Y2O3:Eu＞Sc2O3:Eu.
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DOI：
10.1088/0022-3727/44/23/235101
发表时间：
2011-06
期刊：
Journal of Physics D: Applied Physics
影响因子：
--
作者：
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通讯作者：
H. Rétot;S. Blahuta;A. Bessière;B. Viana;B. Lacourse;E. Mattmann
影响因子：
2.2
作者：
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通讯作者：
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影响因子：
6.2
作者：
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通讯作者：
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DOI：
10.1016/j.nima.2004.08.060
发表时间：
2005-01
影响因子：
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作者：
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通讯作者：
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DOI：
10.1002/pssc.200673881
发表时间：
2007-03
期刊：
Physica Status Solidi (c)
影响因子：
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作者：
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通讯作者：
O. Sellès;M. Fasoli;A. Vedda;M. Martini;D. Gourier