| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7839617 | Journal of Luminescence | 2018 | 16 Pages |
Abstract
Herein we report the improvement in persistent luminescence of Eu2+ doped Sr2Si5N8 nitride phosphor. A systematic experiment has been performed to investigate the influence of co-doping B3+, O2-, Tm3+ in Sr2Si5N8: Eu2+. It is found that B3+ and O2- co-doped Sr2Si5N8: Eu2+ phosphor exhibits better afterglow properties with higher afterglow intensity, which can be attributed to larger trap density. The afterglow luminescence mechanism in Sr2Si5N8: Eu2+, B3+, O2- is discussed on the basis of the host referred binding energy (HRBE) scheme of Sr2Si5N8, the relative energy level positions of 5d and 4â¯f electron of Eu2+ and the trap depth in the host lattice.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Shuxin Wang, Zhen Song, Yuwei Kong, Shiyou Zhang, Zhiguo Xia, Quanlin Liu,