| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5437406 | Ceramics International | 2017 | 25 Pages |
Abstract
Red-emitting long-persistent phosphor Mg2GeO4: Mn4+ was prepared by a high-temperature solid-state reaction. The photoluminescence and afterglow properties of Mg2GeO4: xMn4+ phosphors were studied systematically. Furthermore, to improve the afterglow performance, co-doped Re3+ (Re = Pr, Er, Nd and Yb) ions into Mg2GeO4: 0.001Mn4+ separately to adjust the trap depth or increase the trap density was performed. The duration of Mg2GeO4: 0.001Mn4+ can be observed 30Â min by naked eyes, and the initial brightness and afterglow duration are significantly improved after Re3+ ions are doped respectively. Especially, the afterglow emission of Mg2GeO4: Mn4+, Yb3+ can last for 2Â h. This investigation shows up a rare Mn4+-doped long-afterglow phenomenon, and provides a new and efficient red afterglow material for potential application.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Feihong Xue, Yihua Hu, Li Chen, Haoyi Wu, Guifang Ju, Tao Wang, Lv Yang,