Luminescent properties of UV excitable blue emitting phosphors MSr4(BO3)3:Ce3+ (M = Li and Na)
Luminescent properties of UV excitable blue emitting phosphors MSr4(BO3)3:Ce3+ (M = Li and Na)
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DOI：
10.1016/j.jallcom.2011.01.194
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发表时间：
2011-04-07
影响因子：
6.2
通讯作者：
Bai, Jintao
中科院分区：
文献类型：
--
作者：
Guo, Chongfeng;Ding, Xu;Bai, Jintao
采用传统的固相反应法成功合成了一系列Ce 3+掺杂的新型硼酸盐荧光粉MSr 4（BO 3）（3）（M = Li或Na）。用X射线粉末衍射仪对样品的晶体结构和相纯度进行了表征。通过荧光光谱的测试，确定了化合物MSr 4（BO 3）（3）（M = Li或Na）中Ce 3+离子的最佳掺杂浓度。Ce ~（3+）掺杂的MSr_4（BO_3）（3）（M = Li或Na）在345 nm光激发下，表现出较强的紫外宽带吸收和明亮的蓝光发射。此外，还研究了在355 nm脉冲激光激发下，M（1+x）Sr（4-2x）Cex（BO_3）（3）（M= Li或Na）荧光粉的发射光谱与温度的关系，其中Li的最佳组成为x = 0.05，Na的最佳组成为x = 0.09。实验结果表明，M（1+x）Sr（4-2x）Cex（BO_3）（3）（M= Li或Na）是一种很有前途的紫外光泵浦蓝色荧光粉。(C)2011年爱思唯尔B。V.保留所有权利。
A series of Ce3+ doped novel borate phosphors MSr4(BO3)(3) (M = Li or Na) were successfully synthesized by traditional solid-state reaction. The crystal structures and the phase purities of samples were characterized by powder X-ray diffraction. The optimal concentrations of dopant Ce3+ ions in compound MSr4(BO3)(3) (M = Li or Na) were determined through the measurements of photoluminescence spectra of phosphors. Ce3+ doped phosphors MSr4(BO3)(3) (M = Li or Na) show strong broad band absorption in UV spectral region and bright blue emission under the excitation of 345nm light. In addition, the temperature dependences of emission spectra of M(1+x)Sr(4-2x)Cex(BO3)(3) (M= Li or Na) phosphors with optimal composition x = 0.05 for Li and x = 0.09 for Na excited under 355nm pulse laser were also investigated. The experimental results indicate that the M(1+x)Sr(4-2x)Cex(BO3)(3) (M= Li or Na) phosphors are promising blue emitting phosphors pumped by UV light. (C) 2011 Elsevier B. V. All rights reserved.