YAG中Cr3+和Yb3+的发光特征以及Cr3+和Yb3+之间的能量传递过程
Chinese Journal of Luminescence(2015)
Abstract
室温下观察了YAG∶Cr3+,Yb3+材料在近红外区域的发光特性,并通过对Cr3+:4 T2和Yb3+:2 F5/2能级辐射跃迁寿命以及它们布居时间的比较研究,提出了从Cr3+到Yb3+的能量传递机制,同时借助于能级图描述了从Cr3+到Yb3+的能量传递以及Cr3+和Yb3+的近红外发光过程。
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Key words
Cr3+,Yb3+,NIR emission,energy transfer
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