中国激光, 2009, 36 (5): 1184, 网络出版: 2009-05-22
Ho3+/Yb3+共掺的氧氟硅酸盐微晶玻璃上转换发光
Upconversion Luminescence of Ho3+/Yb3+ Codoped Oxyfluoride Silicate Glass Ceramics
材料 氧氟硅酸盐微晶玻璃 上转换发光 X射线衍射 materials oxyfluoride glass silicate ceramics upconversion luminescence X-ray diffraction Ho3+ Ho3+
摘要
制备了Ho3+/Yb3+共掺的氧氟硅酸盐玻璃, 根据玻璃样品的差热分析(DTA)进行微晶化处理, 测试了Ho3+/Yb3+共掺微晶玻璃的X射线衍射(XRD)图谱、透射电镜(TEM)谱、吸收光谱和上转换发光光谱。根据Scherrer公式计算了CaF2微晶的平均晶粒尺寸,并与TEM谱进行比对; 利用晶体生长动力学理论研究了纳米CaF2晶粒的生长特性, 获得纳米CaF2晶体生长动力学方程; 研究了微晶玻璃中Ho3+离子的上转换发光特性; 分析了微晶玻璃上转换发光机制。研究结果表明氧氟硅酸盐微晶玻璃是一种良好的上转换基质材料。
Abstract
Ho3+/Yb3+ codoped oxyfluoride silicate glass has been prepared. According to differetial thermal analysis (DTA) studies, the as-made glass was crystallized. X-ray diffraction (XRD) spectrum, transmission electron microscope (TEM) spectrum, absorption spectrum and up-conversion luminescence of glass ceramics were measured. The average crystallite size of CaF2 glass ceramics was calculated by Scherrer formula and compared with that of TEM. The crystal growth characteristics of nanometer CaF2 as well as effects on the diameter of CaF2 were studied by the kinetics theory of crystal growth. The dynamics equation of crystal growth of nanometer CaF2 was obtained. The upconversion fluorescence emission spectra of Ho3+/Yb3+ in oxyfluoride silicate glass ceramics were investigated and the upconversion luminescence mechanism of oxyfluoride silicate glass ceramics was analyzed . The results indicate that the oxyfluoride silicate glass ceramics is a potential luminescence material for upconversion green lasers.
李晨霞, 康娟, 郑飞, 邓德刚, 赵士龙, 徐时清. Ho3+/Yb3+共掺的氧氟硅酸盐微晶玻璃上转换发光[J]. 中国激光, 2009, 36(5): 1184. Li Chenxia, Kang Juan, Zheng Fei, Deng Degang, Zhao Shilong, Xu Shiqing. Upconversion Luminescence of Ho3+/Yb3+ Codoped Oxyfluoride Silicate Glass Ceramics[J]. Chinese Journal of Lasers, 2009, 36(5): 1184.