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1 results

  • ZnS nanoparticles synthesis and characterization

  • Yvonne Axmann, Alke Petri, Heinrich Hofmann
  • Journal:
    MRS Online Proceedings Library Archive / Volume 789 / 2003
    Published online by Cambridge University Press:
    01 February 2011, N11.23
    Print publication:
    2003

  • ZnS:Mn2+ nanoparticles were synthesized via a wet chemical method with L-cysteine as the stabilizing agent. The obtained aqueous dispersions show an orange luminescence, which is typical for the 4T1 → 6A1 transition within the Mn2+ d-orbitals. The fluorescence quantum yield has been determined with quinine sulphate as a dye reference. It can be increased after formation of a SiO2 shell around the particles by a factor of three. The particle size was determined with transmission electron microscopy (TEM), X-ray diffraction and PCS measurements.