Effects of Eu2+, Dy3+ Contents and Particle Sizes on the Luminescent Properties of SrAl2O4 Phosphor by the Sol-gel Process
A green emitting SrAl2o4:Eu2+, Dy3+phosphor with high brightness and long afterglow was synthesized by the sol-gel method. SrAl204:Eu2+,Dy3+phosphor exhlblted broad band extending from 450 to 650 nm and maximum emission spectra peaking at 520 nm. Three excited levels existed, two shoulders were observed at 270 and 330 nm in addition to the maximum at 360 nm on the excitation spectrum. After the removal of excitation light, the excellent after-glow characteristic of the phosphorescence was obtained as a result of low decay time, although the after-glow intensities of phosphor varied exponentially with the time.
Strontium aluminate Long phosphorescent Sol-gel method Emission Ezcitation
Dae-Yong Shin Kyung-Nam Kim
Hub Univ.for Industrial Collaboration, Kangwon National Univ., 200-701, Korea Dept.of Ad.Mater.Sci.& Eng., Kanqwon National Univ., 245-711.Korea
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
473-476
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）