| Sr7Zr(PO4)6∶xEu2+蓝色荧光粉的合成及其发光特性 |
| Synthesis and Luminescent Properties of Blue Emitting Phosphor Sr7Zr(PO4)6: xEu2+ |
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| 摘要: 通过高温固相反应合成了新型的蓝色荧光粉Sr7Zr(PO4)6∶xEu2+。通过X射线粉末衍射(XRD)、紫外可见(UV-Vis)吸收光谱、荧光光谱研究了Sr7Zr(PO4)6∶xEu2+材料的相纯度及荧光性质。结果表明，Eu2+掺杂获得的Sr7Zr(PO4)6∶xEu2+荧光粉为纯相，且200~400 nm范围内的近紫外(NUV)光均能对其进行有效的激发。在315 nm的激发下，Sr7Zr(PO4)6∶xEu2+荧光粉发射出峰值位于415 nm左右的蓝光，且Eu2+在Sr7Zr (PO4)6基质中的最佳掺杂浓度为0.05，相应的CIE色度坐标为(0.164，0.021)，比商用BaMgAl10O17∶Eu2+(BAM)蓝色荧光粉具有更高的色纯度。 |
| 关键词: 蓝光发射 荧光粉 Sr7Zr(PO4)6:xEu2+ 光学材料 |
| 基金项目: |
| Abstract: A novel blue-emitting phosphor Sr7Zr(PO4)6:xEu2+was synthesized for the first time via a traditional solid- state reaction method. Phase purity and luminescence properties of these phosphors were studied by X-ray powder diffraction, UV -Vis spectra, and fluorescence spectra. X-ray diffraction results confirmed the pure phase of Eu2+ doped Sr7Zr(PO4)6 materials and they could be efficiently pumped by the near-ultraviolet (NUV) light region from 200 to 400 nm. Excited by 315 nm, Sr7Zr(PO4)6:xEu2+ exhibited a strong and broad emission band ranging from 380 to 480 nm with a maximum peak at 415 nm. The concentration quenching mechanism of Eu2+ in Sr7Zr(PO4)6 was electric dipole-electric dipole interaction, and the critical distance for energy transfer was 2.71 nm. The optimal con-centration of Eu2+ was 0.05 and the corresponding CIE chromaticity coordinate was (0.164, 0.021), exhibiting higher color purity than commercial BaMgAl10O17:Eu2+ (BAM) blue phosphor. |
| Keywords: blue-emitting phosphor Sr7Zr(PO4)6:xEu2+ optical materials |
| 投稿时间：2022-02-15 修订日期：2022-05-18 |
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| 胡吉卓,梁枝光,吴松凌,程秀兰.Sr7Zr(PO4)6∶xEu2+蓝色荧光粉的合成及其发光特性[J].无机化学学报,2022,38(7):1361-1366. |
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