摘要
采用电弧法制备出 Sr Al2 O4:Eu2 + 长余辉发光陶瓷 ,通过荧光光谱和激发光谱研究了它的发光和余辉特性。结果表明 ,陶瓷的发光衰减与多晶粉末磷光体相同 ,也是由初始的快衰减与后期的慢衰减构成 ,但余辉的特征明显好于多晶磷光体 ,而且耐环境性能得到显著地改善。
Luminescent chinaware of long persistence of S rA l 2O 4:Eu- 2+ has been prepared with using arc method.Fluorescence an d excitation spectra were measured in order to study its luminescence and long p ersistence properties.Results show that both of luminescent chinaware and polycr ystalline powdered phosphor are the same in luminescence decay and consist of an initial fast process and a later extremely slow process.Long persistence proper ties of luminescent chinaware are better more than polycrystalline powdered phos phor,and its function of environment-resistant has been improved prominently.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2000年第3期268-269,共2页
Spectroscopy and Spectral Analysis
