期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 95, 期 12, 页码 3871-3877出版社
WILEY
DOI: 10.1111/j.1551-2916.2012.05378.x
关键词
-
资金
- Natural Science Foundation of Jiang Su Province [BK2007724]
- National Defense Fundamental Research of China [6134502-1]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Research and Innovation Program for College Graduates of Jiangsu Province [CXZZ12_0410]
Two different Sr2SiO4:Dy3+ phosphors were successfully synthesized at 1000 degrees C for 4 h using NH4Cl or SrCl2 as the flux, respectively. The luminescence intensity of Sr2SiO4:Dy3+ was enhanced 60 times by the addition of 5 wt% NH4Cl. The phase evolution and photoluminescence (PL) properties of the phosphors were investigated by the calculation of phase equilibrium and the analysis of TG/DSC, XRD, SEM, and PL. The role of NH4Cl was proved to be attributed to the formation of SrCl2 at 300 degrees C. The flux NH4Cl or SrCl2 lowered the decomposition temperature of carbonate and promoted the preferential formation of a' phase in the solid-state reaction through accelerating the kinetics of the formation of Sr2SiO4 by enhancing diffusion with more liquid phase.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据