| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5397842 | Journal of Luminescence | 2017 | 5 Pages |
Abstract
The step energy transfers from Pr3+ 4f5d state to Ce3+ 5d state followed by energy back transfer from Ce3+ 5d state to Pr3+ 1D2 level are studied. The Ce3+âPr3+ energy back transfer upon Pr3+ 4f5d excitation is found to be more efficient than the normal Ce3+âPr3+ energy transfer upon Ce3+ 5d excitation. The efficient energy back transfer is attributed to preferential excitation of the Ce3+ ion with an adjacent Pr3+ surrounding in Pr3+âCe3+ energy transfer of the first step, whereas Ce3+ is excited randomly in the normal energy transfer. The efficiencies of Ce3+âPr3+ energy back transfer as a function of Ce3+ and Pr3+ concentration are evaluated, respectively.
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Authors
Dan Wu Dan Wu, Zhendong Hao, Xia Zhang, Guo-Hui Pan, Yongshi Luo, Ligong Zhang, Haifeng Zhao, Jiahua Zhang,