Preparation of ZnS:Mn Nanoparticles in Reverse Micellar Systems and Their Photoluminescent Properties

The photoluminescence from Mn2+-doped ZnS (ZnS:Mn) nanoparticles prepared in an AOT/isooctane reverse micellar system was investigated. The composition (Mn content) and photoluminescent properties of the nanoparticles depend on the composition of the feed solution and the water content (Wo) of reverse micellar solution. The emission intensity from Mn2+ ions at 580 nm depends mainly on the Mn content in the nanoparticles rather than the nanoparticle size, when the nanoparticle size is controlled by varying the Wo value at a constant feed composition of Zn and Mn.