摘要
结合当前对光学材料发展的需求,制备了Tb3+掺杂的氟硅酸盐微晶玻璃,并研究了其晶化工艺和发光性能。通过DSC分析,确定了母体玻璃的析晶温度652℃。通过研究样品不同保温时间下的晶化热处理工艺制备出含CaF2纳米晶的透明微晶玻璃,且保温时间为24 h时获得最佳晶粒尺寸。探讨了365 nm激发下Tb3+掺杂氟硅酸盐微晶玻璃的光谱性能,发现在Tb3+掺杂微晶玻璃样品能发出强烈的绿色荧光(545 nm)。随着热处理时间增加,其荧光发射强度呈现增高的趋势,在热处理24 h时发射光谱强度最强。
Combining with the current development demand for optical materials, preparation of Tb3+-doped fluosilicate glass-ceramic,its luminescence properties and crystallization process have been studied. The crystallization temperature of the precursor glass is determined for 652 ℃ by DSC analysis. Transparent glass containing Ca F2 nanocrystals has been obtained by investigating the crystallization process of samples under different time of heat treatment. Meanwhile the optimum grain size is obtained under the 24 h of holding time. In addition it is noted that an intense green(545nm) emission is observed in Tb3+-doped fluosilicate glass ceramic. Green emission intensity were enhanced with the increase of heat treatment and the optimum time of heat treatment is 24 h.
出处
《中国陶瓷》
CSCD
北大核心
2015年第4期55-58,共4页
China Ceramics
基金
河南省教育厅科学技术研究重点项目(14A430034)
河南省高等学校青年骨干教师资助计划(2012GGJS-192)
洛阳市科技发展计划(1401051A)
关键词
氟硅酸盐微晶玻璃
TB3+
晶化工艺
光谱性能
Fluosilicate glass ceramic
Tb3+
Crystallization process
Spectral properties
