| 초록 |
ZnS nanopartices (NPs) have attracted much attention during the last decade due to their luminescent properties. In this study, ZnS NPs on the monodispersed spherical silica NPs (ZnS@Silica, ZnS NPs weighed from 1 wt % to 16 wt % of ZnS based on the amount of silica used) were synthesized and covered with silica layer on their surface (Silica@ZnS@Silica). In PL analysis, PL intensities of ZnS@Silica NPs were increased to 1 ->8 wt %, but it decreased at more than 8 wt %. These results can be understood by electronic coupling and photoinduced electron transfer. Their optical properties, structure analysis and surface morphology observation were investigated by PL instrument, UV-Vis spectrophotometer, XRD, SEM and HR-TEM respectively. |
