Fast fluorescence and scintillation of Pr-doped yttrium aluminum perovskite
Fast fluorescence and scintillation of Pr-doped yttrium aluminum perovskite
复制标题
Pr掺杂钇铝钙钛矿的快速荧光和闪烁
DOI：
10.1016/0925-3467(94)90010-8
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发表时间：
1994
影响因子：
3.9
通讯作者：
K. Blažek
中科院分区：
文献类型：
--
作者：
C. Pédrini;D. Bouttet;C. Dujardin;B. Moine;I. Dafinei;P. Lecoq;M. Košelja;K. Blažek
在同步辐射和激光激发下研究了 Pr 掺杂 YA1O3(YAP) 的光谱。快速紫外荧光被证明是由于 Pr3+ 允许的 d-f 跃迁所致。测量了 Pr 掺杂 YAP 的光产率并与 Ce 掺杂 YAP 进行比较。 Pr: YAP 相对较低的闪烁效率是由于两个系统中掺杂离子的浓度差异很大以及 Pr: YAP 中存在 Ce 痕量杂质造成的，这些杂质可以充当 Pr3+ 离子快速 UV 闪烁的捕获中心。
Spectroscopy of Pr-doped YA1O3(YAP) has been investigated under synchrotron radiation and laser excitations. Fast UV fluorescence was shown to be due to allowed d–f transitions of Pr3+. Light yield of Pr-doped YAP has been measured in comparison with Ce-doped YAP. The relatively low scintillation efficiency of Pr: YAP is explained by the very different concentration of the dopant ions in both systems and by the presence in Pr: YAP of Ce trace impurities which can act as trap centers for the fast UV scintillation of Pr3+ions.