余辉
研磨
燃烧
材料科学
分散剂
微波食品加热
发光
分析化学(期刊)
相(物质)
矿物学
复合材料
化学
色散(光学)
光电子学
光学
环境化学
物理
伽马射线暴
有机化学
量子力学
天文
作者
Haiyan Du,LI Geng-shen,Jiang Sun
标识
DOI:10.1016/s1002-0721(07)60037-4
摘要
The non-grinding long afterglow material SrAl2O4:Eu2+, Dy3+ was prepared by combustion method in home microwave oven directly, after dispersant, frother, comburent, and mineralizer were added into the reacting system. XRD analysis showed that the powders were nearly pure SrAl2O4 phase with few other phases, and the size of the grain was 41.1 nm. Fluorescence spectrum results indicated that there were 2 excitation peaks located at 345 and 400 nm, and the emission peak located at 516 nm, afterglow lasted up to 30 min or more. The microwave combustion method has advantages of less time, low temperature and no grinding process, and the material made by the method has good luminescent property.
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