Luminescent Core/Shell Nanoparticles with a Rhabdophane LnPO4-xH2O Structure: Stabilization of Ce3+-Doped Compositions


  • We thank Rhodia for financial support of this work.


The core/shell strategy has been successfully developed for rhabdophane lanthanide phosphate aqueous colloids. The growth of a LaPO4-xH2O shell around Ce,Tb-doped core nanoparticles increases their stability against oxidation. A bright green luminescence is thus preserved in sol–gel films whose fabrication requires silica coating and thermal treatment of the core/shell nanoparticles.