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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/039/04/0943-0952

    • Keywords

       

      Citric acid; X-ray diffraction; down-conversion emission; energy transfer.

    • Abstract

       

      Nanoparticles of sodium lanthanum (III) fluoride-doped and co-doped with Eu$^{3+}/Tb$^{3+}$ were prepared by the hydrothermal method using citric acid as structure-directing agent. Structural aspects and optical properties of synthesized nanoparticles were studied by powder X-ray diffraction (XRPD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), energy-dispersive X-ray spectra (EDS), particle size by dynamic light scattering (DLS), Fourier transform infrared (FTIR) spectrum and photoluminescence (PL) techniques. Nanoparticles consist of well-crystallized hexagonal phase and the average crystallite size for undoped and doped-NaLaF$_4$ nanoparticles are in the range of 20–22 nm. TEM images show that nanoparticles have cylindrical shape and crystalline nature of nanoparticles was confirmed by SAED patterns. Downconversion(DC) luminescent properties of doped NaLaF4 were also investigated and impact of co-doping has been explored.

    • Author Affiliations

       

      JIGMET LADOL1 HEENA KHAJURIA1 SONIKA KHAJURIA1 HAQ NAWAZ SHEIKH1

      1. Department of Chemistry, University of Jammu, Jammu 180006, India
    • Dates

       

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