| 초록 |
Rare earth nanoparticles with a narrow size distribution and high luminescent efficiencies are attractive to used as phosphors in display and lighting technologies because of their intensive, sharp emission and high thermal stability. In particular, the yttrium oxide nanoparticles co-doped with trivalent europium ions exhibit red luminescence and always are used as red phosphors. In this paper, the Eu:Y2O3 nanoparticles were synthesis using oleic acid as surfactant and oleylamine as solvent. Then, the nanoparticles were self-assembled into mesophase silicate thin film to form ordered nanoparticle arrays. The mesophase structure was confirmed by X-ray diffraction and transmission electron microscopy. The physical properties resulting from the coupling of adjacent nanoparticles within the ordered arrays were study using luminescence spectra. The mesophase silicate thin film incorporated with Eu:Y2O3 nanoparticles provide a promising platforms to utilize luminescent nanoparticle arrays. |
