摘要
为了规范长余辉材料余辉性能测试的标准化,采用屏幕亮度计测试了S rA l2O 4:Eu2+,D y3+长余辉材料的余辉性能;研究了激发光源、激发时间、样品粒度和用量对余辉性能测试的影响,结果表明在9W三基色灯下激发15m in可使余辉材料发光亮度达到饱和,随着样品粒径增大和质量增加,发光强度明显增强,余辉时间也显著延长.
In order to improve the afterglow properties testing standardization of the long afterglow materials, the afterglow properties of the long afterglow SrAl2O4： Eu^2＋, Dy^3＋ were measured by using ST-86LA brightness meter. The influence factors Of the afterglow properties testing were studied by varying excitation light source, excitation time, particle size and mass of the long afterglow materials. The result indicates that the brightness of the long afterglow materials reached saturation under 9W conventional tricolor fluorescent for 15min, the brightness improved and the decay time prolonged with the increasing of particle size and mass of samples.
出处
《中南民族大学学报（自然科学版）》
CAS
2006年第4期5-7,共3页
Journal of South-Central University for Nationalities：Natural Science Edition
基金
湖北省自然科学基金重点资助项目(2001ABA009)
关键词
长余辉材料
余辉性能
激发
粒径
long afterglow materials
afterglow properties
excitation
particle size
