Luminescence Properties of Eu2+ and Mn2+ Codoped 50SiO2–17Al2O3–23MgF2–10NaF Glasses and Glass–Ceramics
Luminescence Properties of Eu2+ and Mn2+ Codoped 50SiO2–17Al2O3–23MgF2–10NaF Glasses and Glass–Ceramics
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DOI：
10.1111/j.1551-2916.2011.04554.x
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发表时间：
2011-06
影响因子：
3.9
通讯作者：
Qun Luo;X. Qiao;X. Fan;Bo Fan;Xianghua Zhang
中科院分区：
文献类型：
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作者：
Qun Luo;X. Qiao;X. Fan;Bo Fan;Xianghua Zhang
制备了Eu2+和Mn2+共掺的50SiO_2-17Al_2O_3-23MgF_2-10NaF玻璃和微晶玻璃，并对其发光性能进行了研究。Eu2+和Mn2+共掺玻璃中Mn2+的红光发射强度约为Mn2+共掺玻璃中的5倍，这可归因于Eu2+向Mn2+的能量传递。玻璃中Eu2+到Mn2+的能量传递机制为偶极-四极相互作用。由于Eu2+和Mn2+离子进入了微晶玻璃中较低声子能量环境中的MgF2纳米晶，微晶玻璃的发光强度比玻璃要强。
The Eu2+ and Mn2+ codoped 50SiO2–17Al2O3–23MgF2–10NaF glasses and glass–ceramics were prepared and their luminescence properties were investigated. The red emission intensity of Mn2+ in the Eu2+ and Mn2+ codoped glass was about five times stronger than that in the Mn2+ doped glass, which could be attributed to energy transfer from Eu2+ to Mn2+. The energy transfer mechanism from Eu2+ to Mn2+ in glasses was determined to be a dipole-quadrupole interaction. The luminescence intensity of the glass–ceramics was stronger than that of the glass because some Eu2+ and Mn2+ ions entered lower phonon energy environment of MgF2 nanocrystals in the glass–ceramics.