Green Synthesis of Nanoparticles Molybdate Doped with Rare Earth Ion and Its Luminescence Property

摘要

The aim of this study is to prepare nanoparticles molybdates doped with rare earth ion Eu~(3+) synthesized by sol-gel method to study the luminescence property of these crystal powders. The influence of pH and doping amount of Eu~(3+) on these nanoparticles was also investigated. The results showed that CaMoO_4: Eu~(3+) (6%, mass ratio) prepared in pH value 7-9 and calcined at 700℃ became uniformly cubic crystal and exhibited red photoluminescence with strongest emission peak at 612×258 nm excitation, which was caused by ~5D_0→~7F_2 transition of Eu~(3+). It can be predicted this CaMoO_4: Eu~(3+) phosphor could be a potential phosphor material for white-light LED application in the future.