Luminescence Properties of Eu2+-Doped Glass Ceramics Containing SrF2 Nanocrystals
Luminescence Properties of Eu2+-Doped Glass Ceramics Containing SrF2 Nanocrystals
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Eu2+掺杂SrF2纳米微晶玻璃的发光性能
DOI：
10.1111/j.1551-2916.2010.03756.x
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发表时间：
2010-09-01
影响因子：
3.9
通讯作者：
Zhang, Xianghua
中科院分区：
文献类型：
--
作者：
Luo, Qun;Qiao, Xvsheng;Zhang, Xianghua
制备了含SrF2纳米晶的Eu2+掺杂玻璃和微晶玻璃，并对其发光性能进行了研究。通过X射线衍射和透射电子显微镜证实了玻璃陶瓷中SrF2纳米晶的形成。玻璃在还原气氛中熔化，然后晶化，导致玻璃陶瓷中几乎所有的Eu3+离子都被还原为Eu2+离子。掺Eu2+的SrF2纳米微晶玻璃具有较强的宽蓝光发射带和较长的激发态寿命。
The Eu2+-doped glasses and glass ceramics containing SrF2 nanocrystals were prepared and their luminescence properties were investigated. The formation of SrF2 nanocrystals in glass ceramics was confirmed by X-ray diffraction and transmission electron microscopy. The melting in a reducing atmosphere and then the crystallization of glass resulted in the reduction of almost all Eu3+ ions to Eu2+ ions in the glass ceramics. The Eu2+-doped glass ceramics containing SrF2 nanocrystals exhibited a much stronger broad blue emission band and a longer lifetime of excited state than the glasses.