| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9804034 | Journal of Alloys and Compounds | 2005 | 5 Pages |
Abstract
Long lasting afterglow phosphors Sr2MgSi2O7:Eu,Dy and Ca2MgSi2O7:Eu,Dy were prepared by solid-state reaction method. It is revealed by the results that both phosphors show two emission peaks that are caused by the different emitting centers Eu2+ held in the host lattice. Wavelength shift was observed due to the slight differences in the structure parameters of the two hosts. Investigation on afterglow property shows that Sr2MgSi2O7:Eu,Dy phosphor held a better afterglow property than Ca2MgSi2O7:Eu,Dy phosphor. Thermal simulated luminescence study indicates that the long afterglow is generated by a higher trap concentration formed by the co-doped rare earth ions within the host.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Qin Fei, Chengkang Chang, Dali Mao,