Spectral properties of rare-earth ions in nanocrystalline YAG:Re (Re = Ce~(3+) , Pr~(3+), Tb~(3+))

Shihong Zhou; Zuoling Fu; Jingjun Zhang; Siyuan Zhang

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Spectral properties of rare-earth ions in nanocrystalline YAG:Re (Re = Ce~(3+) , Pr~(3+), Tb~(3+))

机译：纳米YAG：Re中稀土离子的光谱特性（Re = Ce〜（3+），Pr〜（3+），Tb〜（3+））

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摘要

Bulk and nanoscale powders of YAG:Re (Re = Ce, Pr, Tb) were synthesized by solid-state and sol-gel method. The changes of spectra and energy level were studied. Compared with the bulk YAG:Re (Re = Ce, Pr, Tb) crystals, the lattice parameter of YAG:Re (Re = Ce, Pr, Tb) nanocrystals decreases. It is also found that the excitation peaks of 5d energy levels shift in nanocrystals. The physical reason for spectral and energy level changes is a comprehensive result from the shift of energy centroid of the 5d orbit, the Coulomb interaction between 4f and 5d electrons and the crystal field splitting of the 5d energy level.

机译：通过固态和溶胶-凝胶法合成了YAG：Re（Re = Ce，Pr，Tb）的块状和纳米级粉末。研究了光谱和能级的变化。与块状YAG：Re（Re = Ce，Pr，Tb）晶体相比，YAG：Re（Re = Ce，Pr，Tb）纳米晶体的晶格参数降低。还发现5d能级的激发峰在纳米晶体中移动。光谱和能级变化的物理原因是5d轨道能量质心的移动，4f和5d电子之间的库仑相互作用以及5d能级的晶体场分裂的综合结果。

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来源
《Journal of Luminescence》 |2006年第2期|p.179-185|共7页
作者
Shihong Zhou; Zuoling Fu; Jingjun Zhang; Siyuan Zhang;
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作者单位

Key Laboratory of Rare-earth Chemistry and Physics, Graduate School of the Chinese Academy of Science, Changchun Institute of Applied Chemistry, Chinese Academy Sciences, Changchun 130022, Peoples' Republic of China;

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原文格式 PDF
正文语种 eng
中图分类光学;
关键词
YAG; rare-earth; energy shift; nanocrystalline;

机译：YAG;稀土;能量转移;纳米晶;

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Spectral properties of rare-earth ions in nanocrystalline YAG:Re (Re = Ce~(3+) , Pr~(3+), Tb~(3+))

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