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1. 中国科学院大学 北京,100049
2. 中国科学院国家天文台 南京天文光学技术研究所, 江苏 南京 210042
3. 中国科学院南京天文光学技术研究所 天文光学技术重点实验室,江苏 南京,210042
纸质出版日期:2018-8-5,
网络出版日期:2018-4-2,
收稿日期:2017-11-15,
修回日期:2018-3-4,
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唐靓, 叶慧琪, 肖东. 溶胶-凝胶法制备YAG:Ce,Yb纳米荧光粉及其发光性质研究[J]. 发光学报, 2018,39(8): 1051-1058
TANG Liang, YE Hui-qi, XIAO Dong. YAG:Ce,Yb Nano-phosphor Synthesized by Sol-gel Method and Its Luminescence Properties[J]. Chinese Journal of Luminescence, 2018,39(8): 1051-1058
唐靓, 叶慧琪, 肖东. 溶胶-凝胶法制备YAG:Ce,Yb纳米荧光粉及其发光性质研究[J]. 发光学报, 2018,39(8): 1051-1058 DOI: 10.3788/fgxb20183908.1051.
TANG Liang, YE Hui-qi, XIAO Dong. YAG:Ce,Yb Nano-phosphor Synthesized by Sol-gel Method and Its Luminescence Properties[J]. Chinese Journal of Luminescence, 2018,39(8): 1051-1058 DOI: 10.3788/fgxb20183908.1051.
使用溶胶-凝胶法在不同煅烧温度下制备了不同掺杂的YAG:Ce,Yb荧光粉。使用扫描电镜、X射线衍射仪对其形貌、结构进行了表征;采用光致发光、荧光寿命等技术,对其发光性质进行了研究。结果表明:粉体粒径随煅烧温度上升而增大,在1 000℃下,得到平均尺寸~84 nm的纳米荧光粉。溶胶-凝胶法产物与高温固态法产物相比,Yb
3+
离子发光的猝灭浓度由10%下降至5%。这可能是由于溶胶-凝胶反应产物体系中掺杂离子分布更加均匀所致。
YAG:Ce
Yb nano-phosphor with different doping concentrations was synthesized under various sinter temperature
via
sol-gel method. The morphology and structure of the resulting products were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The luminescence properties of the phosphors were studied by photoluminescence spectra and lifetimes. The samples show a rise in particle size with increased calcination temperature. Under 1 000℃
pure YAG phase with an average particle size of~84 nm are obtained. The quenching concentration of Yb
3+
in the aforementioned phosphors exhibits a decrease from 10% to 5%
probably due to more homogeneous distribution of doping ions in the system of sol-gel products.
YAG:CeYb溶胶-凝胶法纳米荧光粉猝灭浓度
YAG:CeYbsol-gel methodnano-phosphorquenching concentration
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