| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5403651 | Journal of Luminescence | 2007 | 6 Pages |
Abstract
Eu,Ti co-doped Y2O2S:0.03Ti,0.03Eu phosphors and single Eu or Ti doped Y2O2S phosphors were prepared and their luminescent properties were investigated in detail by photoluminescence (PL) spectra, long afterglow spectra and thermoluminescence spectra measurements. The results showed that Y2O2S:Ti,Eu phosphors possess orange-red afterglow color with afterglow time above 5Â h. The reddish afterglow color, which corresponds to a set of linear Eu3+ emissions at low-energy range (540-630Â nm), was demonstrated to come from the energy transfer process from yellow Ti afterglow emissions, the proposed energy transfer mechanism may well explain the Eu3+ afterglow emission.
Related Topics
Physical Sciences and Engineering
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Physical and Theoretical Chemistry
Authors
Zhanglian Hong, Pengyue Zhang, Xianping Fan, Minquan Wang,