| La_7O_6(BO_3)(PO_4)_2∶Eu~(3+)/Tb~(3+)荧光材料的制备及其光致发光性能 |
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| 引用本文： | 李世龙,吕超,闵鑫,房明浩,黄朝晖,刘艳改.La_7O_6(BO_3)(PO_4)_2∶Eu~(3+)/Tb~(3+)荧光材料的制备及其光致发光性能[J].无机化学学报,2017,33(5):761-768. |
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| 作者姓名： | 李世龙 吕超 闵鑫 房明浩 黄朝晖 刘艳改 |
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| 作者单位： | 中国地质大学(北京)材料科学与工程学院, 非金属矿物与固废资源材料化利用北京市重点实验室, 矿物岩石材料开放应用国家专业实验室, 北京 100083,中国地质大学(北京)材料科学与工程学院, 非金属矿物与固废资源材料化利用北京市重点实验室, 矿物岩石材料开放应用国家专业实验室, 北京 100083,中国地质大学(北京)材料科学与工程学院, 非金属矿物与固废资源材料化利用北京市重点实验室, 矿物岩石材料开放应用国家专业实验室, 北京 100083,中国地质大学(北京)材料科学与工程学院, 非金属矿物与固废资源材料化利用北京市重点实验室, 矿物岩石材料开放应用国家专业实验室, 北京 100083,中国地质大学(北京)材料科学与工程学院, 非金属矿物与固废资源材料化利用北京市重点实验室, 矿物岩石材料开放应用国家专业实验室, 北京 100083,中国地质大学(北京)材料科学与工程学院, 非金属矿物与固废资源材料化利用北京市重点实验室, 矿物岩石材料开放应用国家专业实验室, 北京 100083 |
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| 基金项目： | 中国地质大学（北京）大学生创新项目（No.201511415023）资助。 |
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| 摘 要： | 采用优化的高温固相方法制备了稀土离子Eu~(3+)和Tb~(3+)掺杂的La_7O_6(BO_3)(PO_4)_2系荧光材料,并对其物相行为、晶体结构、光致发光性能和热稳定性进行了详细研究。结果表明,La_7O_6(BO_3)(PO_4)_2∶Eu~(3+)材料在紫外光激发下能够发射出红光,发射光谱中最强发射峰位于616 nm处,为5D0→7F2特征能级跃迁,Eu~(3+)的最优掺杂浓度为0.08,对应的CIE坐标为(0.610 2,0.382 3);La_7O_6(BO_3)(PO_4)_2∶Tb~(3+)材料在紫外光激发下能够发射出绿光,发射光谱中最强发射峰位于544 nm处,对应Tb~(3+)的5D4→7F5能级跃迁,Tb~(3+)离子的最优掺杂浓度为0.15,对应的CIE坐标为(0.317 7,0.535 2)。此外,对2种材料的变温光谱分析发现Eu~(3+)和Tb~(3+)掺杂的La_7O_6(BO_3)(PO_4)_2荧光材料均具有良好的热稳定性。
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| 关 键 词： | 荧光材料 光致发光 Eu3+ Tb3+ La7O6(BO3)(PO4)2 |
| 收稿时间： | 2016/12/22 0:00:00 |
| 修稿时间： | 2017/3/13 0:00:00 |
Preparation and Luminescence Properties of La7O6(BO3)(PO4)2: Tb3+/Eu3+ Phosphors |
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| LI Shi-Long,L&#; Chao,MIN Xin,FANG Ming-Hao,HUANG Zhao-Hui and LIU Yan-Gai.Preparation and Luminescence Properties of La7O6(BO3)(PO4)2: Tb3+/Eu3+ Phosphors[J].Chinese Journal of Inorganic Chemistry,2017,33(5):761-768. |
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| Authors: | LI Shi-Long L&#; Chao MIN Xin FANG Ming-Hao HUANG Zhao-Hui and LIU Yan-Gai |
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| Institution: | Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China,Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China,Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China,Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China,Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China and Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China |
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| Abstract: | La7O6(BO3)(PO4)2:Tb3+ and La7O6(BO3)(PO4)2:Eu3+ phosphors were prepared by a high-temperature solid state reaction, and the phase behavior, crystal structure, luminescence properties and thermal stability were investigated. The La7O6(BO3)(PO4)2:Eu3+ phosphors emitted a red light under the ultraviolet excitation. The emission maximum was at 616 nm, corresponding to the 5D0-7F2 transition of Eu3+. The concentration quenching pheno-menon was observed when the doping concentration of Eu3+ ion was beyond 0.08. The corresponding CIE coordinates were calculated to be (0.610 2, 0.382 3). The La7O6(BO3)(PO4)2:Tb3+ phosphors emitted a green light under the ultraviolet excitation. The emission maximum was at 544 nm, corresponding to the 5D4-7F5 transition of Tb3+. Concentration quenching phenomenon was observed when the concentration of Tb3+ ion was beyond 0.15, and its CIE coordinates are calculated to be (0.317 7, 0.535 2). Based on the analysis of temperature-dependent emission spectra of La7O6(BO3)(PO4)2:Tb3+ and La7O6(BO3)(PO4)2:Eu3+ phosphors, it can be found that both phosphors possess good thermal stability. |
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| Keywords: | phosphors photoluminescence properties Eu3+ Tb3+ La7O6(BO3)(PO4)2 |
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