Synthesis and optical properties of luminescent core-shell structured silicate and phosphate nanoparticles

摘要

Monodisperse, luminescent core-shell structured inorganic nanoparticles were synthesized by sol-gel technology. They exhibit an amorphous SiO2 core and a crystalline luminescent shell. Zn_2Si0_4:Mn~2+ and Ca_10(PO_4)_6OH:Eu~3+ shell materials are investigated. The influence of the doping concentration on optical and structural properties was studied. The resulting nanoparticles were characterized by X-ray diffraction analysis, transmission electron microscopy, inductively coupled plasma optical emission spec-trometry, and photoluminescence spectroscopy.