Photoluminescence Characteristics of Bi(m+)-Doped Silica Optical Fiber: Structural Model and Theoretical Analysis
Photoluminescence Characteristics of Bi(m+)-Doped Silica Optical Fiber: Structural Model and Theoretical Analysis
复制标题
Bi(m)掺杂石英光纤的光致发光特性:结构模型与理论分析
DOI:
10.7567/jjap.52.122501
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发表时间:
2013-11
影响因子:
1.5
通讯作者:
Gang-Ding Peng
中科院分区:
文献类型:
--
作者:
Jianxiang Wen;Tingyun Wang;Fufei Pang;Xianglong Zeng;Zhenyi Chen;Gang-Ding Peng
The energy levels associated with structural models of different valence states of Bi ions in Bi-doped silica optical fiber are investigated using the density functional theory of quantum-chemical calculation. The Bi5+, Bi3+, and Bi+ local structure models with and without Al ion are analyzed and compared with respect to their fluorescence characteristics. The result reveals that the special fluorescence effect possibly comes from Bi5+ and/or Bi3+ ions. Bi5+ ions may combine with Al ions that activate the luminescence center of Bi5+ ions. Furthermore, the distinctive fluorescence bands are efficiently generated by the coupling effect between Bi5+ and Al3+ ions. The fluorescence of Bi3+ ions may come from the Bi3+ ions with Al-free ion. Fluorescence of Bi+ ions may exist, but its contribution to the fluorescence is nominal.
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