采用固相反应法成功地将Eu元素掺入Ce B6纳米晶中,并系统地研究了对其光吸收性能的影响规律。由XRD分析、扫描电镜和透射电镜能谱分析结果充分证明了Eu元素成功地掺入了Ce B6晶格中。光吸收结果表明,随着Eu掺杂量的增加,Ce B6吸收峰波长从938 nm增加至1718 nm,产生了"红移"现象。与此同时,透射光波长也从可见光区域的798 nm红移至近红外区域的1138 nm。本文揭示了通过Eu掺杂可使Ce B6透射光波长和吸收峰波长连续可调。这一特性对于拓展Ce B6的光学应用具有重要意义。
The Eu-doped Ce B6 nanocrystalline was successfully synthesized by a solid-state reaction and their optical properties were investigated. The XRD and EDS analyses fully confirm that the Eu element has been successfully doped into the lattice of CeB 6. The optical absorption results show that maximum absorption red-shifted from 938 nm to 1718 nm. Meanwhile, it is interestingly found that the maximum transmission also red-shifts from visible region of 798 nm to near-infrared region of 1138 nm, which is for the first time to be obtained tunable optical characteristic CeB 6 by Eu doping. Thus, these interesting findings on Ce B6 nanocrystalline can extend its optical application.