| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7996467 | Journal of Alloys and Compounds | 2016 | 6 Pages |
Abstract
Bright near-infrared (NIR) luminescent ceramic discs of Zn2SnO4:Cr3+, Eu3+ were synthesized by a solid state method. The phase structure was checked by XRD. The photoluminescence and persistent luminescence decay properties of Cr3+, Eu3+-codoped samples were studied systematically. The photoluminescence and photoluminescence excitation spectra revealed that the NIR emission (centered at 800Â nm) of Cr3+ was significantly enhanced after the incorporation of Eu3+ ions, which was attributed to the energy transfer from Eu3+ ions to Cr3+. Moreover, the incorporation of Eu3+ ions could effectively delay the decay rate and enhance the NIR persistent luminescence. The analysis of persistent decay curves and thermoluminescence spectra indicated that the Eu3+ ions acting as effective deep-trap centers contributed to improved Cr3+ NIR persistent luminescence.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yi Zhang, Rui Huang, Zhenxu Lin, Jie Song, Xiang Wang, Yanqing Guo, Chao Song, Ying Yu,