Eu~(3+)掺杂MgO-A1_2O_3-SiO_2光致发光性能研究

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英文篇名：Luminescence Properties of Eu~(3+) Doped MgO-Al_2O_3-SiO_2 Phosphors 作者：计海峰 ; 郑娣莲 ; 王卫东 英文作者：JI Haifeng;ZHENG Dilian;WANG Weidong;School of Petrochemical Engineering, Jilin Institute of Chemical Technology; 关键词：堇青石 ; 晶相 ; Eu3+ 英文关键词：Cordierite;;Crystalline phase;;Eu3+ 中文刊名：中国陶瓷 英文刊名：China Ceramics 机构：吉林化工学院石油化工学院; 出版日期：2019-03-05 出版单位：中国陶瓷 年：2019 期：03 语种：中文; 页：40-43 页数：4 CN：36-1090/TQ ISSN：1001-9642 分类号：TQ422

摘要

采用溶胶-凝胶法制备稀土离子Eu~(3+)掺杂MgO-A1_2O_3-SiO_2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%B_2O_3,烧结温度为1200℃时,结晶度为85.93%;Eu~(3+)的添加使得晶格产生缺陷,当Eu~(3+)的添加量为4 wt%的发光强度最强,Eu~(3+)离子最强发射峰在613 nm处,发红色荧光。
        Rare earth ion Eu~(3+)-doped MgO-Al_2 O_3-SiO_2 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% B_2 O_3) and a sintering temperature of 1200 ℃ led to a crystallinity of 85.93%. The addition of Eu~(3+) 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 Eu~(3+) ions is at 613 nm, corresponding to red fluorescence.

引文

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