SrAl 2O 4:Eu,Dy long afterglow luminescence powders were synthesized by a traditional ceramic synthesis method. The excitation peaks lied in 320 nm and 360 nm, and the emission peak lied in 520 nm, the afterglow time went up to 8 h.
SrA2O4: Eu,Dy long afterglow luminescence powders are synthesized by the traditional ceramic synthesis method. The excitation peaks lie in 320nm and 360nm, and the emission peak lies in 520nm, the afterglow time may reach above 8h.
SrAl 2O 4:Eu,Dy long afterglow luminescence powders were synthesized by the traditional ceramic preparing method. The main emission peak lies in a 520 nm wavelength, and the afterglow time was longer than 20 h.
Green photoluminescent powder of aluminate strontium (cerium,terbium) is prepared by utilizing ceria,terdia and aluminate strontium. The result of experiment reveals that luminescent performance of specimen is mainly affected by the contents of cerium and terbium, and by thermal insulation. The luminescent mechanism of Ce 3+ and Tb 3+ is discussed preliminarily.
本文报道了利用 Ce O2 ,Tb4 O7和 Sr Al2 O4 为主原料合成 Sr Al2 O4 :(Ce,Tb)光致绿色发光粉体研究结果 ,实验研究表明 Ce3+ ,Tb3+ 含量、保温时间等主要合成条件对合成样品发光性能具有重要影响 ,并对其发光机理进行了初步探讨