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| Yb3+/Er3+双掺镥基氟化物晶体上转换发光能力的快速实验判别 |
| Rapid discrimination of upconversion luminescence ability of Yb3+/Er3+ co-doped lutetium-based fluoride crystals |
| 投稿时间:2024-01-19 |
| DOI:10.3969/j.issn.1005-5630.202401190010 |
| 中文关键词: 上转换发光 Yb3+/Er3+双掺 最大声子能量 氟化物 多声子弛豫 |
| 英文关键词:upconversion luminescence Yb3+/Er3+ co-doped maximum phonon energy fluoride multi-phonon relaxation |
| 基金项目:黑龙江省省属高等学校基本科研业务费科研项目(2020-KYYWFMY-0070) |
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| 中文摘要: |
| 为了快速判别稀土掺杂晶体材料的上转换发光能力,设计并采用液–固相转移法合成Yb3+/Er3+双掺MLuxFy(M为Li、Na、K、Rb或Cs;x = 1,y = 4或x = 2,y = 7)材料体系,使用X射线衍射仪、透射电镜、拉曼光谱仪和荧光分光光度计对材料体系进行结构和发光性能检测。实验结果表明,Yb3+/Er3+双掺MLuxFy亚微米/纳米晶体在980 nm激光激发下均可实现绿色和红色上转换发光,但其上转换发光能力各不相同。实验中,利用泵浦功率阈值(pump power threshold,PPT)快速区分Yb3+/Er3+双掺亚微米/纳米晶体的上转换发光能力。通过分析发现,PPT与Yb3+/Er3+双掺亚微米/纳米晶体的最大声子能量之间存在相关性。因此,在稀土掺杂上转换发光晶体材料的筛选过程中,可在发光性能测试时使用PPT,以快速判别其上转换发光能力。 |
| 英文摘要: |
| In order to quickly identify the upconversion luminescence ability of rare earth doped crystal materials, Yb3+/Er3+ co-doped MLuxFy (M = Li, Na, K, Rb, or Cs; x = 1, y = 4, or x = 2, y = 7) crystal materials were designed and then synthesized using a liquid-solid transfer method. The materials were characterized by using X-ray diffraction, transmission electron microscope, Raman spectroscopy, and fluorescence spectrophotometer. The results indicated that green and red upconversion luminescence of Yb3+/Er3+ co-doped MLuxFy submicron/nanocrystals were obtained under a 980 nm laser excitation, whereas these submicron/nanocrystals differed from one another in their ability to give out upconversion luminescence. In the experiment, a pump power threshold (PPT) was used to quickly distinguish the difference in upconversion luminescence ability of Yb3+/Er3+ co-doped MLuxFy submicron/nanocrystals. According to analysis, it is found that there is a correlation between the PPT and the maximum phonon energies of Yb3+/Er3+ co-doped MLuxFy submicron/nanocrystals. Therefore, in the screening of rare earth doped upconversion luminescent crystal materials, the PPT can be used to quickly identify their upconversion luminescent ability. |
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