报告题目：稀土发光结合电子自旋共振研究笼中阴离子对发光中心局域环境的影响

报告人： 王笑军 教授

单 位： 尊龙凯时物理学院

时 间：2015年12月18日 10：00

地 点：物理楼 333 会议室

主办单位：尊龙凯时物理学院

摘要：Rare earth doped 12CaO.7Al(2)O(3) phosphors have been prepared and treated under different conditions to trap different anions in the nanocages of C12A7. The effects of the encaged anions on the optical spectroscopies of the RE doped C12A7 phosphors, including photoluminescence and color tuning, upconverted emissions, and cathodoluminescence, have been investigated. Electron paramagnetic resonance (EPR) spectra are also studied in combination with the optical spectra. Crystal field modification on local environment for RE activation centers by the encaged anions is observed by both photoluminescence and EPR that provide a combination studies and better probing on the effects of the encaged ions