Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5460259 | Journal of Alloys and Compounds | 2017 | 6 Pages |
Abstract
SrGa2O4, possessing a one-dimensional chain structure of cations along a crystal direction, exhibits a self-activated blue long persistent luminescence (LPL) related to the intrinsic defects. Different trap depths are generated forming a successive defect structure in this three-dimensional framework of SrGa2O4 containing channels occupied by Sr2+ when Tb3+ ions are introduced. The deeper traps are critically important to prevent the thermal fading of carriers at room temperature, therefore, LPL is achieved in SrGa2O4:Tb3+ phosphor at 328Â K. Furthermore, a photo-stimulated luminescence originated from Tb3+ ions is realized in SrGa2O4:Tb3+ phosphor induced by 980Â nm laser diode with the assistance of the deeper traps at room temperature.257
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xue Yu, Shaobo Wang, Yucheng Zhu, Jiajing Liang, Jianbei Qiu, Xuhui Xu, Wei Lu,