A strategy to achieve efficient green-emission dual-mode luminescence of Yb3+, Er3+ doped NaBiF4
| Autor: | Qitu Zhang, Jue Wang, Rui-Rong Zhang, Xibing Li, Tong Lin, Lixi Wang, Jinhui Xie, Gui-Hua Qiu, Wentao Huang |
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| Rok vydání: | 2020 |
| Předmět: |
Phase transition
Materials science 020502 materials Doping Metals and Alloys Hexagonal phase Analytical chemistry Phosphor 02 engineering and technology Condensed Matter Physics 0205 materials engineering Phase (matter) Materials Chemistry Thermal stability Physical and Theoretical Chemistry Luminescence Intensity (heat transfer) |
| Zdroj: | Rare Metals. 40:2040-2048 |
| ISSN: | 1867-7185 1001-0521 |
| DOI: | 10.1007/s12598-020-01570-7 |
| Popis: | A series of hexagonal phase NaBiF4: xYb3+, yEr3+ were successfully synthesized by solvothermal method. The morphology, phase structure, up-conversion luminescence and down-conversion luminescence properties of Yb3+ and Er3+ doping concentration and the energy transfer mechanism were studied. It shows that the doping of Yb3+ and Er3+ does not cause the phase transition of NaBiF4, but influences its morphology. In the NaBiF4: Yb3+, Er3+, Yb3+ can transfer energy with Er3+, enhancing up-conversion green emission. With Yb3+ doping concentration increasing, the up-conversion red-green ratio will increase while the down-conversion intensity of the green emission decreases and that of the red emission increases. Considering the potential application of NaBiF4: xYb3+, yEr3+ phosphors in optical illumination, the thermal stability was carried out. |
| Databáze: | OpenAIRE |
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