Luminescence of ZrO2 nanocrystals

Donats Millers 2,  Witold Łojkowski 1,  Larisa Grigorjeva 2,  Agnieszka Opalińska 

1. Polish Academy of Sciences, High Pressure Research Center (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland
2. Institute of Solid State Physics, University of Latvia, 8 Kengaraga, Riga LV-1063, Latvia

Abstract


The time-resolved luminescence have been studied for undoped and doped ZrO2 nanocrystals. The undoped and Pr doped nanocrystals had dominant tetragonal structure with small admixture of monoclinic fraction. The yttrium stabilized nanocrystals had cubic structure. The comparison of the luminescence from different structure nanocrystals was possible. The luminescence dependence on temperature for undoped ZrO2 nanocrystals shown that both - nonradiative transitions and luminescence center destroying are responsible for luminescence quenching. ZrO2:Pr nanocrystal luminescence shown dominant emission from Pr3+, indicating that intrinsic excitation in ZrO2 are very mobile and efficient energy transfer from matrix to dopand takes place. The luminescence dependence on temperature for ZrO2:Pr differs from that for undoped nanocrystals. The luminescence from cubic structure ZrO2 nanocrystal somewhat differs from this of tetragonal structure. The possible reasons are studied. On the one hand the yttrium admixture might be responsible for differencies observed. On the other hand IR absorption spectra indicates that the uncontrolled molecular impurities content in nanocrystals is different. The IR absorption spectra for ZrO2 and ZrO2:Pr indicates the same molecular impurities (however amount of them was different) whereas yttrium stabilized nanocrystals IR spectra shown additional groups of absorption lines.

Related papers
  1. Hydrothermal Synthesis of ZnAl2O4 Spinel
  2. Localization of rare-earth dopants in the lattice of nanocrystalline ZrO2 - EXAFS study
  3. Nanostructural characterization and magnetic properties of pure and Fe, Co or Mn-doped TiO2 nanopowders prepared by Solar Physical Vapor Deposition (SPVD)
  4. Advanced nanoporous yttria-stabilized zirconia ceramics for luminescent oxygen sensors
  5. Excitation transfer in zirconia nanocrystals and ceramics
  6. Eu Luminescence in zirconia nanocrystals
  7. ZnO ceramic sintering and luminescence properties
  8. Oferta zaawansowanych materiałów w perspektywie 5 - 20 lat
  9. Strategia rozwoju badań nanoproszków
  10. Error bars in powder diffraction
  11. Synthesis of doped ZnO nanopowders in microwave hydrothermal reactors
  12. Characterization of nanopowders
  13. Synthesis of Al doped ZnO nanopowders and their enhanced luminescence
  14. Synthesis of nanopowders in supercritical water in a continuous flow reactor
  15. A summary of results obtained in Working Group 002 "Synthesis and Processing of Nanopowders"
  16. Summary of activities of Working Group D30/003 "Synthesis and Processing of Nanopowders"
  17. Doped zirconia nanopowders made in microwave – pressure reactor
  18. Combining microwave and pressure techniques for hydrothermal synthesis of ZnO and ZrO2 nanopowders doped with a range of metal ions
  19. Luminescence properties of zinc oxide nanopowders doped with Al ions obtained by the hydrothermal and vapour condensation methods.
  20. Surface chemistry of Pr-doped nanocrystalline zirconia
  21. Mechanical property of nano-TiO2 dispersed Al65Cu20Ti15 amorphous/nanocrystalline matrix bulk composite prepared by mechanical alloying and high pressure sintering
  22. Fast luminescence in ZnO structures
  23. Oxygen defects related luminescence of ZrO2 nanocrystals
  24. Microwave technique applied on the hydrothermal synthesis and sintering of calcia stabilized zirconia nanoparticles
  25. Luminescence properties of cerium doped Y3Al5O12 nanopowders and nanoceramic
  26. Yttrium-Aluminum Garnet Synthesized in the Medium of Supercritical Fluids
  27. Advanced nanostructural zirconia ceramics for optical oxygen sensors
  28. Study of undoped and doped zirconia nanocrystals luminescence
  29. Doping of ZnO nanopowders with Mn, Ni and Cr In an ultrasound and microwave driver hydrothermal reaction
  30. Localization of rare-earth dopants in the lattice of nanocrystalline ZrO2 - EXAFS study
  31. Zirconia-based nanomaterials for oxygen sensor - generation, characterisation and optical properties
  32. Production of doped and non doped ceramics nanoparticles for optical applications
  33. Synthesis, sintering and properties of doped nanocrystalline powders of zirconia, zinc oxide and yttrium aluminum garnet (YAG)
  34. Characterization of nanocrystalline ZrO2 doped with Rare-Earth elements synthesized via High Pressure Hydrothermal Method
  35. Particle Size Distribution of ZrO2:Pr3+- Influences of pH, High Power Ultrasound, Surfactant and Dopant Quantity
  36. Time-Resolved Luminescence Characteristics of Doped YAG and YAP Nanopowders
  37. The luminescence properties of ZnO:Al nanopowders obtained by sol-gel and vaporization-condensation methods
  38. Cathodoluminescence of Al doped ZnO nanopowders
  39. Morphology of Al doped Zinc Oxide Obtained using Hydrothermal and Vapour Condensation Methods
  40. Luminescence and structural properties of rare-earth doped YAG nanoceramics
  41. Optimization of conditions of preparation of YAG nanopowders for sintering of translucent ceramics
  42. The influence of ZrO2 containing 10% Eu 3+ on the polyurethane hard domain structure of nano-composites with luminescence properties
  43. Growth and properties of ytterbium doped KY(WO4)2 nanocomposites
  44. Investigations on the utilization of nano zinc oxides synthesized by hydrothermal method in rubber compounds
  45. Luminescence of Europium doped ZrO2 nanopowder
  46. Doping of ZnO nanopowders with Mn and Cr in an ultrasound and microwave driven hydrothermal reaction
  47. Investigations of phase composition and grain size distribution in Pr doped ZrO2
  48. Nasze wyniki, zdania i sposoby ich realizacji
  49. Morphology of Al doped zinc oxide obtained by the vapour condensation method
  50. The comparison of the properties of YAG obtained by coprecipitation and SCR method
  51. Synthesis of nanopowders at elevated pressure and their characterisation - summary of work of the WG-002
  52. Accuracy of XRD size measurements of nanocrystals
  53. Morphology of Al-Doped Zinc Oxide Obtained by the Vapour Condensation Methods
  54. SWOT analysis of various reactors used for synthesis of nanopwoders in our Working Group
  55. Preliminary research on zirconia based optical oxygen sensor
  56. Preparation and electrical properties of the BaTiO3 nanoceramics
  57. Current trends in the development of metallic nanomaterials: results of a study carried out within the EC project Nanoroad SME
  58. Microstructural Evolution in Mechanical Alloying and Hot Pressing of Aluminium and 316 Stainless Steel Powder Blend
  59. Time-resolved luminescence of nanostructured ZnO
  60. Prediction of degree of localisation of misfit dislocation cores in intercrystalline interfaces based on interfacial adhesion
  61. Kinetic and thermodynamic factors leading to dissolution of cementite in pearlitic steel subjected to severe plastic deformation under pressure
  62. Yttria stabilized zirconia nanocrystals luminescence
  63. Application of XRD diffraction methods for determination of grain size distribution in nanoparticles
  64. Optical investigations of RE-doped YAG nanoceramics
  65. Electrical properties of nanocrystalline ZrO2 at high-pressure
  66. High-pressure Induced Structural Decomposition of RE-doped YAG Nanoceramics
  67. Synthesis of Al-doped ZnO nanomaterials with controlled luminescence properties
  68. Combination of ECAP and Hydrostatic Extrusion for ultra-fine grain (UFG) microstructure generation in 99.98% nickel.
  69. Mechanical properties and deformation behaviour of ultra-fine grained nickel.
  70. Grain Size and Grain Size Distribution of Nanocrystalline Pr-doped Zirconia Powders Obtained in High Pressure Microwave Reactor
  71. Influence of synthesis conditions on the particles size and the morphology of zinc oxide nanopowders
  72. Measuring the Grain Size Distribution of Pr-doped Zirconia Nanopowders obtained by Microwave Driven Hydrothermal Synthesis
  73. Excellent mechanical properties of UFG metals and alloys, subjected to combination of severe plastic deformation methods.
  74. An FT-IR Spectroscopic Investigation of Hydroxide Groups in Nano-Crystals of ZrO2.
  75. Development of microstructure and mechanical properties in nickel deformed by hydrostatic extrusion
  76. Structural and luminescence properties of yttrium-aluminum garnet (YAG) nanoceramics
  77. Biocompatibility of thin films based on hydrothermal synthesized HAp
  78. Hybrid HAp- maleic anhydride copolymer nanocomposites obtained by in situ functionalisation
  79. Fabrication and electrical properties of Eu3+:BaTiO3 nanoceramics for SOFC
  80. Molecular impurities in the luminescent ZnO nanocrystals
  81. HYDROTHERMAL SYNTHESIS OF NANOSTRUCTURED ZIRCONIA MATERIALS: PRESENT STATE AND FUTURE PROSPECTS
  82. X-Ray investigations of the natural and artificial White Etching Layer
  83. Diffusion and diffusion induced defects in GaN
  84. Excellent Mechanical Properties of Nickel Processed by High Pressure Techniques
  85. Microwave driven hydrothermal synthesis of iron oxide - the effect of process parameter on the properties of the nanopowders
  86. Relaxation processes in ZrO2 at high pressures
  87. Luminescence of ZrO2 and ZnO nanocrystals
  88. Luminescence mechanisms: from single crystals to nanocrystals
  89. Zinc oxide nanopowders obtained by the microwave-hydrothermal route
  90. Microwave driven hydrothermal synthesis of Pr-doped zirconia nanopowders
  91. New hydroxyapatite based nanomaterials for potential use in medical fields
  92. Color centers in YAP:Pr crystals
  93. Correlation between high-pressure ZrO2 electrical properties and crystallite size
  94. Precise determination of full Grain Size Distribution from diffraction peak profile as a result of kinematical theory of diffraction for polidispersive nanomaterials
  95. Pressure Effect on Grain Boundary Diffusion in Al Bicrystals
  96. Microstructure of Surface Layers of Raiways After Heavy Exploatation
  97. Normal Grain Growth in 2-d Strips of Polycrystalline Aluminium Under High Pressure
  98. Reaction Diffusion in Metallic Systems under High Pressure
  99. High Pressure Effect on Grain Boundary Wetting in Aluminium Bicrystals
  100. Pressure Effect on Interface Energy, Diffusion and Reactions
  101. Microwave-Hydrothermal Synthesis of Nanostructured Pr-Doped Zirconia Powders
  102. The Strain Induced Cementite Dissolution in Carbon Steels-Experimental Facts and Theoretical Approach
  103. Effect of SPD Grain Refinement and Peculiarity of Structure and Mechanical Properties of UFG Ni
  104. Luminescense of Nanosize ZrO2
  105. Structure, Morphology and Luminescence Properties of Pr-doped Nanocrystalline ZrO2 Obtained by Hydrothermal Method
  106. Nanostructure Formation on the Surface of Railway Tracks and Wheelsets
  107. Hydrothermal Synthesis of Zinc Oxide Nanopowders with Microwaves Applications
  108. Microwave Driven Hydrothermal Synthesis of Iron Oxide Nanopowders
  109. Indentation Technique for Determination if Mechanical Behavior of Nanomaterials (Bulk and Coatings)

Presentation: oral at E-MRS Fall Meeting 2004, Symposium G, by Donats Millers
See On-line Journal of E-MRS Fall Meeting 2004

Submitted: 2004-05-05 13:53
Revised:   2004-05-05 14:45
Google
 
Web science24.com
© 1998-2008 pielaszek research, all rights reserved Powered by the Conference Engine