| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5397876 | Journal of Luminescence | 2017 | 6 Pages |
Abstract
Upconversion phosphors can convert near-infrared light into visible emission by sequentially absorbing multiple photons. In most studies, Yb3+/Er3+, Yb3+/Tm3+ ions are used as sensitizer/activator in host materials. In this work, we introduce chromium (Cr3+) ions to NaLu0.86-xGd0.12F4:Crx3+Er0.023+ (UCCr) material that is instead of ytterbium (Yb3+) ions. The UCCr material with a different concentration of Cr3+ ions (0â¤xâ¤0.24) was synthesized by a facile hydrothermal synthesis method. The characterization of the developed UCCr material was performed by photoluminescence (PL), Field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD) and Electron paramagnetic resonance (EPR). The effect of Cr3+ ions on the upconversion luminescence and magnetic-resonant properties of UCCr material was investigated in detail. The upconversion mechanism was proposed.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Zayakhuu Gerelkhuu, Bui The Huy, Jong Won Chung, The-Long Phan, Eric Conte, Yong-Ill Lee,