7. Synthesis of robust water-soluble ZnS : Mn/SiO2 core/shell nanoparticles
作者：Jing SunJiaqi ZhuangShaowei GuanWensheng Yang
關(guān)鍵字：nanocrystals
論文來源：期刊
具體來源：Journal of Nanoparticle Research, 2008, 10(4): 653-658.
發(fā)表時間：2008年
Water-soluble Mn doped ZnS (ZnS:Mn) nanocrystals synthesized by using 3-mercaptopropionic acid (MPA) as stabilizer were homogeneously coated with a dense silica shell through a multi-step procedure. First, 3-mercaptopropyl triethoxy silane (MPS) was used to replace MPA on the particle surface to form a vitreophilic layer for further silica deposition under optimal experimental conditions. Then a two-step silica deposition was performed to form the final water-soluble ZnS:Mn/SiO2 core/shell nanoparticles. The as-prepared core/shell nanoparticles show little change in fluorescence intensity in a wide range of pH value.