Structure, luminescence and temperature sensing in rare earth doped glass ceramics containing NaY(WO) nanocrystals.

Novel rare earth doped glass ceramics containing NaY(WO) nanocrystals were fabricated for the first time. The appearance of sharp diffraction peaks and well-resolved lattice fringes certifies the precipitation of NaY(WO) nanocrystals with high crystallinity. After the crystallization process, significant changes in the photoluminescence emission spectra and fluorescence lifetime of Sm ions are observed, which are ascribable to the enrichment of Sm ions in the highly disordered NaY(WO) nanocrystals.