【摘要】 采用溶胶-凝胶法制备稀土离子Eu³⁺掺杂MgO-A1₂O₃-SiO₂堇青石基发光材料,通过应用差热分析（DSC）、X射线衍射仪（XRD）、荧光分光光度计（PL）对样品的晶体结构及光学性能进行测试。结果表明:添加烧结助剂5wt%B₂O₃,烧结温度为1200℃时,结晶度为85.93%;Eu³⁺的添加使得晶格产生缺陷,当Eu³⁺的添加量为4 wt%的发光强度最强,Eu³⁺离子最强发射峰在613 nm处,发红色荧光。更多还原

【Abstract】 Rare earth ion Eu³⁺-doped MgO-Al₂ O₃-SiO₂ cordierite-based luminescent materials were prepared by the sol-gel method. The crystal structure, morphology, and luminescence properties of the samples were characterized by differential scanning calorimetry（DSC）, X-ray diffraction（XRD） and photoluminescence spectroscopy（PL）. The results show that the addition of a sintering additive（5 wt% B₂ O₃） and a sintering temperature of 1200 ℃ led to a crystallinity of 85.93%. The addition of Eu³⁺ led to the formation of lattice defect. The strongest emission intensity was reached at a Eu3+ doping content of 4 wt%, The strongest emission peak of the Eu³⁺ ions is at 613 nm, corresponding to red fluorescence.更多还原