Spectra Characteristics of SrLaAlO4:Dy3+ Phosphor

The SrLa(1-x)AlO(4):xDy(3+) phosphor was synthesized by high temperature solid-state methods. The luminescent properties of the phosphor were investigated. The emission spectrum of SrLa(1-x)AlO(4):xDy(3+) phosphor shows several bands at 484 rim, 578 nm and 669 nm under the excitation of the 352nm. The effects of Dy(3+) content on the luminescent intensity of 484nm of the phosphor were investigated under the excitation of the 365nm. The result shows that the optimum concentration of Dy3+ in SrLa(1-x)AlO(4) is x=3mol%. The concentration quenching mechanisms are the dipole-dipole interaction.