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Effect of solvent on nanostructure and luminescence properties of combustion synthesized Eu3+ doped yttria

Rafiaei, S. M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1166/nnl.2014.1818
  3. Abstract:
  4. Y2 O3:Eu3+ nanostructures with bright red emitting phosphors have been synthesized by the combustion method using water and water/ethanol mixture as solvents. The effect of the solvents on nanostructure and luminescence properties of combustion synthesized Y2 O3:Eu3+ was explored. The synthesized nanostructures were calcined at 400 ° C and 1000 ° C to remove the organic phases and enhance the crystallinity. The crystal structures were characterized by an X-ray diffractometer and the particle size and morphology of the synthesized nanostructures were studies using a field emission scanning electron microscope and a transmission electron microscope. We found that the solvent choice has a significant effect on the phosphor nanostructure morphology and the luminescence properties. The phosphors synthesized in water and calcined at high temperatures present higher crystallinity than those synthesized in water/ethanol. Furthermore, Y2 O3 :Eu3+ nanostructures synthesized in water and calcined at 1000 ° C have higher excitation and emission intensities than the nanostructures synthesized in water/ethanol mixture and calcined at the same temperature
  5. Keywords:
  6. Calcination ; Combustion synthesis ; Europium ; Luminescence ; Luminescence of inorganic solids ; Mixtures ; Morphology ; Particle size ; Phosphors ; Scanning electron microscopy ; Solvents ; Transmission electron microscopy ; Yttrium ; Yttrium alloys ; Effect of solvents ; Field emission scanning electron microscopes ; Luminescence properties ; Nanostructure morphologies ; Particle size and morphologies ; Red emitting phosphor ; Water/ethanol mixtures ; X ray diffractometers ; Nanostructures
  7. Source: Nanoscience and Nanotechnology Letters ; Vol. 6, issue. 8 , August , 2014 , p. 692-696
  8. URL: http://www.ingentaconnect.com/content/asp/nnl/2014/00000006/00000008/art00008?crawler=true