Synthesis and luminescence properties of Zn(Cu0.01Cd0.02Mg0.02)S phosphor

To improve the luminescence properties of ZnS : Cu, a multi‐doped method was used to prepare Zn(Cu_0.01Cd_0.02Mg_0.02)S in this paper. As a new designed semiconductor compound, particular properties of Zn(Cu_0.01Cd_0.02Mg_0.02)S were investigated, especially luminescence intensity and lifetime. Structure and compositions of Zn(Cu_0.01Cd_0.02Mg_0.02)S phosphor were analyzed by XRD and TEM respectively. Luminescence intensity and luminescence lifetime of the prepared Zn(Cu_0.01Cd_0.02Mg_0.02)S phosphor were investigated by luminescence spectrometry. As a result, compared with pure ZnS or doped ZnS phosphors, Zn(Cu_0.01Cd_0.02Mg_0.02)S showed remarkably improved luminescence properties. The optimum ratio of three dopants was obtained for solving luminescence problems. Copyright © 2009 John Wiley & Sons, Ltd.