Luminescent Properties of Eu-Doped Transparent Glass–Ceramics Containing YPO4 Nanocrystals
Luminescent Properties of Eu-Doped Transparent Glass–Ceramics Containing YPO4 Nanocrystals
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DOI：
10.1111/j.1551-2916.2011.04532.x
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发表时间：
2011-06
影响因子：
3.9
通讯作者：
Hai Guo;Fang Li;Jingjing Li;Hao Zhang
中科院分区：
文献类型：
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作者：
Hai Guo;Fang Li;Jingjing Li;Hao Zhang
制备了含YPO 4纳米晶的Eu掺杂透明微晶玻璃，并对其结构和发光性能进行了研究。在365 nm光的激发下，前驱体玻璃和微晶玻璃均发射出强烈的宽蓝光，这是由于Eu 2+的5d-4f跃迁以及Eu 3+的特征红光。Eu 3+的Stark劈裂、低的受迫电偶极5D 0 → 7 F2跃迁和长的发射衰减寿命表明Eu 3+已进入YPO 4纳米晶，而Eu 2+仍存在于玻璃基体中。我们的研究结果表明，稀土离子掺杂的YPO 4基微晶玻璃可能会在光子学中找到应用。
Eu-doped transparent glass–ceramics containing YPO4 nanocrystals were prepared, and their structural and luminescent properties were investigated. Excited by 365 nm light, the precursor glass and glass–ceramics all emit an intense broad blue emission ascribing to 5d–4f transition of Eu2+ as well as characteristic sharp red emissions of Eu3+. The prominent Stark splitting, low forced electric dipole 5D0→7F2 transition and long decay lifetimes of Eu3+ emission demonstrated that Eu3+ had entered into YPO4 nanocrystals, while Eu2+ still reside in glass matrix. Our results indicate that YPO4-based glass–ceramics doped with lanthanide ions may find application in photonics.