Fast luminescence in ZnO structures

Larisa Grigorjeva 1Aleksandr Kalinko 1Donats Millers 1Claude J. Monty 2Adam M. Presz 3Janis Grabis 4

1. Institute of Solid State Physics, University of Latvia, 8 Kengaraga, Riga LV-1063, Latvia
2. CNRS laboratoire Procedes, Materiaux et Energie solaire (PROMES), BP5 Odeillo, Font-Romeu 66120, France
3. Polish Academy of Sciences, Institute of High Pressure Physics (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland
4. Riga Technical University, Miera 34, Riga, Latvia


The results of the photo- and cathodoluminescence studies in ZnO nanopowders and ceramics were reported. The luminescence due to exciton annihilation was studied in undoped and Al, Co, Eu doped ZnO nanopowders obtained by sol-gel, microwave-driven hydrothermal, plasma synthesis methods and vaporization-condensation in Solar reactor. Luminescence depends on nanopowder morphology. The results of luminescence studies were compared with those obtained for commercial ZnO powder. The ZnO ceramics was sintered from different raw powders. The grain size of obtained ceramics was estimated from SEM images. The luminescence properties of ceramics obtained with different sintering parameters was studied. The decay times and light yield was analyzed. It is shown that fast scintillating ceramics will be prepared from nanostructured raw material.

Related papers
  1. Zaawansowana Charakteryzacja Nanocząstek
  2. [CEPT] Solvothermal synthesis and characterization of nanomaterials in the Laboratory of Nanostructures for Photonics and Nanomedicine, Center of Bio-Nanomaterials
  3. Scanning Electron Microscopy Investigations and Analysis of Nanostructures
  4. Comparison of RE ion luminescence in zirconia nanocrystals and Single crystals
  5. Presentation of the  Laboratory of Nanostructures for Photonics and Nanomedicine, Center of Bio-Nanomaterials, CePT
  6. Application of the Zeiss Ultra Plus scanning microscopy in bio-nanotechnology 
  7. Influence of heat treatment on luminescence of ZrO+ Eu nanopowders
  8. Optyczny sensor tlenu na bazie nanokrystalicznego ZrO2
  9. Procedury charakteryzacji nanoproszków
  10. Hydrothermal Synthesis of ZnAl2O4 Spinel
  11. Nanostructural characterization and magnetic properties of pure and Fe, Co or Mn-doped TiO2 nanopowders prepared by Solar Physical Vapor Deposition (SPVD)
  12. Advanced nanoporous yttria-stabilized zirconia ceramics for luminescent oxygen sensors
  13. Novel synthesis methods of Co-doped ZnO Nanopowders
  14. Excitation transfer in zirconia nanocrystals and ceramics
  15. Eu Luminescence in zirconia nanocrystals
  16. ZnO ceramic sintering and luminescence properties
  17. Phase development and properties of high-temperature ceramic in the system mullite-ZrO2
  18. Synthesis of Al doped ZnO nanopowders and their enhanced luminescence
  19. Combining microwave and pressure techniques for hydrothermal synthesis of ZnO and ZrO2 nanopowders doped with a range of metal ions
  20. Luminescence properties of zinc oxide nanopowders doped with Al ions obtained by the hydrothermal and vapour condensation methods.
  21. Microstructural analysis of ZnO powders with different concentrations of Al dopant obtained by means of hydrothermal synthesis
  22. Oxygen defects related luminescence of ZrO2 nanocrystals
  23. Luminescence properties of cerium doped Y3Al5O12 nanopowders and nanoceramic
  24. Yttrium-Aluminum Garnet Synthesized in the Medium of Supercritical Fluids
  25. Spectroscopic studies of magnon excitations in nanosized NiO
  26. Advanced nanostructural zirconia ceramics for optical oxygen sensors
  27. Study of undoped and doped zirconia nanocrystals luminescence
  28. Catalytic growth by molecular beam epitaxy and properties of ZnTe-based semiconductor nanowires
  29. Zirconia-based nanomaterials for oxygen sensor - generation, characterisation and optical properties
  30. Time-Resolved Luminescence Characteristics of Doped YAG and YAP Nanopowders
  31. The luminescence properties of ZnO:Al nanopowders obtained by sol-gel and vaporization-condensation methods
  32. Cathodoluminescence of Al doped ZnO nanopowders
  33. Morphology of Al doped Zinc Oxide Obtained using Hydrothermal and Vapour Condensation Methods
  34. Luminescence of Europium doped ZrO2 nanopowder
  35. Synthesis and XRD/PL studies of pure and Sb2O3 doped ZnO nanophases
  36. Morphology of Al doped zinc oxide obtained by the vapour condensation method
  37. Morphology of Al-Doped Zinc Oxide Obtained by the Vapour Condensation Methods
  38. Preliminary research on zirconia based optical oxygen sensor
  39. Preparation and characterisation by XRD and TEM of ZnO based magnetic helionanos
  40. New routes for the synthesis of Al-doped ZnO transparent nanomaterials
  41. Time-resolved luminescence of nanostructured ZnO
  42. Yttria stabilized zirconia nanocrystals luminescence
  43. Concentration dependence of Ni2+ luminescence in MgO
  44. Production and sintering of diamond particles with nanometric nickel coating
  45. Synthesis of Al-doped ZnO nanomaterials with controlled luminescence properties
  46. Nanophase Production Using Solar Energy
  47. Influence of synthesis conditions on the particles size and the morphology of zinc oxide nanopowders
  48. Ionic Conductivity of 4%mol, 9.5%mol Yttria doped Zirconia Nanomaterials and (YSZ )0.98-(Al2O3)0.02 Nanocomposites
  49. Luminescence of ZrO2 nanocrystals
  50. Molecular impurities in the luminescent ZnO nanocrystals
  51. Nano SiC doped MgB2 bulk superconductor with Tc over 42 K by high gas pressure annealing
  53. Investigation of the microstructure of SiC-Zn nanocomposites by microscopic methods: SEM, AFM and TEM
  54. Luminescence of ZrO2 and ZnO nanocrystals
  55. Luminescence mechanisms: from single crystals to nanocrystals
  56. Zinc oxide nanopowders obtained by the microwave-hydrothermal route
  57. Microwave driven hydrothermal synthesis of Pr-doped zirconia nanopowders
  58. Color centers in YAP:Pr crystals
  59. Reaction Diffusion in Metallic Systems under High Pressure
  60. Microwave-Hydrothermal Synthesis of Nanostructured Pr-Doped Zirconia Powders
  61. Preparation of Silicon Carbide/Nitride Nanocomposites with Oxides or Nitrides
  62. Luminescense of Nanosize ZrO2
  63. Structure, Morphology and Luminescence Properties of Pr-doped Nanocrystalline ZrO2 Obtained by Hydrothermal Method
  64. Hydrothermal Synthesis of Zinc Oxide Nanopowders with Microwaves Applications
  65. Microwave Driven Hydrothermal Synthesis of Iron Oxide Nanopowders

Presentation: Poster at E-MRS Fall Meeting 2007, Acta Materialia Gold Medal Workshop, by Larisa Grigorjeva
See On-line Journal of E-MRS Fall Meeting 2007

Submitted: 2007-05-15 16:32
Revised:   2009-06-07 00:44
© 1998-2018 pielaszek research, all rights reserved Powered by the Conference Engine