A role of Gd3+ in scintillating processes in Tb-doped Na–Gd phosphate glasses
A role of Gd3+ in scintillating processes in Tb-doped Na–Gd phosphate glasses
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DOI：
10.1016/s0022-2313(01)00293-9
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发表时间：
2001-12
影响因子：
3.6
通讯作者：
J. Mares;M. Nikl;K. Nitsch;N. Solovieva;A. Krasnikov;S. Zazubovich
中科院分区：
文献类型：
--
作者：
J. Mares;M. Nikl;K. Nitsch;N. Solovieva;A. Krasnikov;S. Zazubovich
本文研究了Gd ~（3+）离子对掺Tb ~（3+）和富Gd的Na_xGdyphosphate玻璃的辐射发光和光致发光能量传递过程的敏化作用。得到了有限的（Gd-Gd）nenergy迁移，并解释了Gd ~（3+）→ Tb ~（3+）的转移主要是由于（超）交换作用。这些结果进行了讨论，并与类似的玻璃或晶体中观察到的情况进行了比较，其中转移过程主要是由于多极相互作用（Gd 3 +→ Ce 3+或Ce 3 +→ Gd 3+）和更有效的迁移Gd 3+离子之间观察到的。
Sensitization role of Gd3+ions in energy transfer processes in radio- and photo-luminescence is described for Tb3+-doped and Gd-enriched NaxGdyphosphate glasses. Limited (Gd–Gd)nenergy migration is obtained and the Gd3+→Tb3+transfer is explained as due to mainly the (super) exchange interaction. These results are discussed and compared with the situation observed in similar glasses or crystals where transfer processes are mainly due to multi-polar interaction (Gd3+→Ce3+or Ce3+→Gd3+) and more efficient migration among Gd3+ions that is observed.