摘要
本文研究了ＢａＦＣｌ∶ＥＵ（２＋）在不同波长的紫外线辐照和不同的测定温度下的光激励发光性质．通过改变激励方式及激励光的扫描方向，给出了ＢａＦＣｌ∶Ｅｕ（２＋）光激励发光过程中，两种Ｆ色心的浓度比值和光激励截面比值与紫外线辐照波长和测定温度的关系．同时我们还研究了在激励读出过程中，对应两种Ｆ色心的光激励发光强度与激励温度的关系，并且给出了相应于Ｆ（Ｃｌ－）心的热激活能．
The photostimulated luminescence(PSL) of BaFCl: Eu2+ phosphors under UV-irradiation is reported. Through changing the stimulable mode and scan direction of the stimulable light, the dependence o.f the density ratios and photostimulation cross section ratio of the two kinds of F color centers on irradiation wavelength and stimulation readout temperature during,the PSL of BaFCl: Eu2+ phosphors are given. Meanwhile the dependence of PSL intensity corresponding to the two kinds of F color centers on stimulation readout tempelature are studied, and active energy corresponding to F(Cl-) center is also calculated.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1996年第1期6-11,共6页
Chinese Journal of Luminescence
基金
国家自然科学基金
稀土材料化学和应用国家重点实验室资助
关键词
光激励发光
紫外线辐照
F色心
光激励
截面
photostimulated luminescence, UV-irradiation, F color center, photostimulation cross section, temperature effects
