发光学报, 2016, 37 (4): 387, 网络出版: 2016-06-06
Ce3+掺杂LiLuF4氟氧微晶玻璃的发光性质
Luminescence Properties of Ce3+ Doped Oxyfluoride Glass Ceramics Containing LiLuF4 Nanocrystals
摘要
通过熔融法以及热处理,制备了Ce3+掺杂含LiLuF4纳米晶的透明氟氧微晶玻璃。XRD结果表明,玻璃中析出的晶相为LiLuF4,其晶粒大小随热处理温度的升高和时间的延长而变大。在330 nm紫外光激发下,Ce3+掺杂的氟氧玻璃和LiLuF4微晶玻璃的发射为一峰值波长为370 nm的宽带光谱。微晶玻璃的发光强度显著高于未经过热处理的基础玻璃,并且随着热处理温度的升高及时间的延长,微晶玻璃的发光逐渐增强。微晶玻璃的370 nm发射的荧光寿命均长于基础玻璃的。
Abstract
Transparent Ce3+ doped glass ceramics containing LiLuF4 nanocrystals were prepared by melt-quenching method with subsequent heat treatment. XRD results show that the precipitated crystalline phase in the glass matrix is LiLuF4. Under 330 nm light excitation, Ce3+ doped oxyfluoride glass ceramics containing LiLuF4 nanocrystals show more intense emission than the as-made glass, and the emission intensity increases with the increasing of heat treatment temperature and time. The lifetimes of 370 nm emission of Ce3+ doped oxyfluoride glass ceramics are longer than that of as-made glass.
李杨, 黄立辉. Ce3+掺杂LiLuF4氟氧微晶玻璃的发光性质[J]. 发光学报, 2016, 37(4): 387. LI Yang, HUANG Li-hui. Luminescence Properties of Ce3+ Doped Oxyfluoride Glass Ceramics Containing LiLuF4 Nanocrystals[J]. Chinese Journal of Luminescence, 2016, 37(4): 387.