Time-resolved luminescence of nanostructured ZnO

Larisa Grigorjeva 1Donats Millers 1Aleksej Kuzmin Robert Kalendarev Witold Łojkowski 2Anita Grzeda 

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


ZnO has been attractive material for potential applications, for example, lasers and optoelectronic devices. The excitonic luminescence with decay times in ps range will be observed up to room temperature. It is expected high quantum yield for fast luminescence due to exciton quantum size effects on nanostructured ZnO. The ZnO nanocrystals and thin films were synthesized and characterized by FTIR, x-ray diffraction and SEM methods. The luminescence spectra and decay kinetics were studied under pulsed laser (266 nm, 2 ns) and pulse electron beam (10 ns 250 keV) excitation. Nanocrystalline powders with controlled grain size 10-40 nm was prepared by microwave driven hydrothermal process using different chemical reactions. Nanostructured ZnO thin films were prepared using i) dc magnetron sputtering technique in mixed Ar/O2 atmosphere from metallic zinc target on Si substrates. After deposition, the samples were heat treated at about 1000C for one hour. Thus obtained films had thickness of about 500 nm and were not preferentially oriented, according to XRD; ii) on Si substrates using atmospheric pressure chemical vapor deposition (APCVD) starting from a mixture of ZnO and graphite powders. Such films had larger thickness of about few microns and were oriented along c-axis in (002) direction.
The photoluminescence spectra of nanopowders and both types of films consist of broad defect band at 1.9-2.4 eV region and excitonic luminescence band at about 3.2 eV. The decay kinetics had complex structure with more than two exponent.

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: http://science24.com/paper/3870 must be provided.


Related papers
  1. Optical oxygen sensor for safe operation in hazardous areas
  2.   Optical oxygen sensor for safe operation  in hazardous areas
  3. Quo Vadis nanotechnology- for various stakeholders
  4. Opening of the Thursday Sessions of NanoPl 2014
  5. Microwave reactors for nanoparticle's synthesis
  6. Opening of Nano-Bio-Med session
  7. Bioactive GoHAP nanoparticles and their applications in medical implants technology
  8. Wykorzystanie metody NTA (Nanoparticle Tracking Analysis) w ocenie wielkości krążących mikrocząstek osocza i innych płynów fizjologicznych: pułapki i triki
  9. Advanced characterisation of nanomaterials according to ISO 17025 Norm

  10. Microwave solvothermal synthesis of resorbable nano-HAp with controlled grain size.
  11. Microwave Solvothermal Synthesis of Nano Zinc Oxide Nanoparticles
  12. Microwave Solvothermal Technology (MSS) for nanoparticle synthesis
  13. [CEPT] Solvothermal synthesis nano zinc oxide in  microwave reactor MSS2
  14. [CEPT] Solvothermal synthesis and characterization of nanomaterials in the Laboratory of Nanostructures for Photonics and Nanomedicine, Center of Bio-Nanomaterials
  15. Scanning Electron Microscopy Investigations and Analysis of Nanostructures
  16. Polish Nanotechnology Platform - a discussion group at Linked-In
  17. Novel optical oxygen sensor for life and health protection made of nano-zirconia
  18. Nanometrology as a tool for nanotechnology problems solving
  19. Creating a Polish Nano-Bio-Technology and  Nano-Medicine Platform?
  20. MSS synthesis of highly biocompatible nano-HAP and coating of 3D poymer scaffolds
  21. Nanotechnologie w gospodarce województwa podlaskiego
  22. Characterization of nanomaterials according to EU recommendations, on the example of ZnO nanoparticles
  23. [CEPT] Nanohydroxyapatite-polylactide composites  for regenerative implants
  24. [CEPT] MSS synthesis of highly biocompatible nano-HAP with properties depending on the synthesis time.
  25. [CEPT] Studies of nanoparticles size distribution
  26. [CEPT] Studies of solubility of nanoparticles and stability of their suspension
  27. Iinvestigation of nanoparticles by DSC-TG methods accompanied by chemical analysis of emitted gas
  28. Comparison of RE ion luminescence in zirconia nanocrystals and Single crystals
  29. Presentation of the  Laboratory of Nanostructures for Photonics and Nanomedicine, Center of Bio-Nanomaterials, CePT
  30. ZnO nanoparticles effect on integrity of human endothelial cells
  31. Importance and trends in nanomedicine according  European Nanomedicine Platform survey
  32. Application of the Zeiss Ultra Plus scanning microscopy in bio-nanotechnology 
  33. Welcome address
  34. Otwarcie NanoInfoDay, Powitanie
  35. Characteristic of hydroxyapatite dense nanoceramic produced by The High Pressure Consolidation  
  36. Wpływ parametrów materiałowo-technicznych na właściwości optycznego czujnika tlenu na bazie nano-ZrO2
  37. Synteza nano-ZnO przy pomocy reaktora Mettler Toledo w Laboratorium Nanostruktur dla Fotoniki i Nanomedycyny CePT.
  38. Infrastruktura i specjalizacje nanotechnologii w Polsce na podstawie wyników ankiety NANOFORCE
  39. Solwotermalna synteza domieszkowanego nanotlenku cynku dla projektu NanoFATE. Otrzymywanie wodnych nanozawiesin domieszkowanego tlenku cynku.
  40. Nanotechnologia bezpieczna dla ludzi i przyjazna środowisku
  41. Badania rozkładu wielkości cząstek i potencjału zeta w Laboratorium Nanostruktur dla Fotoniki i Nanomedycyny CePT
  42. Badanie stabilności i rozpuszczalności zawiesin z nano ZnO i nano ZnO:Co otrzymanych w  Laboratorium Nanostrutur dla Fotoniki i Nanomedycyny CePT
  43. Badania nanoproszków przy pomocy technik DSC-TG/ QMS-FTIR w Laboratorium Nanostruktur dla Fotoniki i Nanomedycyny CePT
  44. Synthesis of highly biocompatible hydroxyapatite nanopowders
  45. Nanosafety - challenge of nowadays
  46. Influence of heat treatment on luminescence of ZrO+ Eu nanopowders
  47. Solvothermal synthesis of doped nano zinc oxide for the project NanoFATE.
  48. Podsumowanie
  49. Solwotermalna synteza domieszkowanego nano tlenku cynku dla projektu NanoFATE.
  50. Hydrothermal Synthesis of Zinc Oxide Nanopowders
  51. Optyczny sensor tlenu na bazie nanokrystalicznego ZrO2
  52. Solvothermal synthesis of nonstoichiometric hydroxyapatite nanoparticles
  53. Solvothermal synthesis of nonstoichiometric hydroxyapatite nanoparticles
  54. Procedury charakteryzacji nanoproszków
  55. Oferty nanoproszków - Laboratorium Nanostruktur, Instytut Wysokich Ciśnien PAN
  56. Nanofotonika dla małych i średnich przedsiębiorstw - mapy dorogowe i analizy SWOT  najważniejszych technologii.
  57. Otwarcie konferencji
  58. Polska  Platforma Nanotechnologii i zarys strategicznego programu "Nanotechnologia i wzrost inwestycji w B&R w Polsce"
  59. Nowe mikrofalowe reaktory do syntez nanocząstek - wybrane zagadnienia badawcze i przykłady zastosowań
  60. ZrO2:Tb nanopowders obtained by coprecipitation method
  61. ZnFe2O4/ZnO core-shell particles obtained by coprecipitation route
  62. Hydrothermal Synthesis of ZnAl2O4 Spinel
  63. Localization of rare-earth dopants in the lattice of nanocrystalline ZrO2 - EXAFS study
  64. Nanostructural characterization and magnetic properties of pure and Fe, Co or Mn-doped TiO2 nanopowders prepared by Solar Physical Vapor Deposition (SPVD)
  65. Advanced nanoporous yttria-stabilized zirconia ceramics for luminescent oxygen sensors
  66. Excitation transfer in zirconia nanocrystals and ceramics
  67. Eu Luminescence in zirconia nanocrystals
  68. ZnO ceramic sintering and luminescence properties
  69. Oferta zaawansowanych materiałów w perspektywie 5 - 20 lat
  70. Strategia rozwoju badań nanoproszków
  71. Error bars in powder diffraction
  72. Synthesis of doped ZnO nanopowders in microwave hydrothermal reactors
  73. Characterization of nanopowders
  74. Synthesis of Al doped ZnO nanopowders and their enhanced luminescence
  75. Synthesis of nanopowders in supercritical water in a continuous flow reactor
  76. A summary of results obtained in Working Group 002 "Synthesis and Processing of Nanopowders"
  77. Summary of activities of Working Group D30/003 "Synthesis and Processing of Nanopowders"
  78. Doped zirconia nanopowders made in microwave – pressure reactor
  79. Combining microwave and pressure techniques for hydrothermal synthesis of ZnO and ZrO2 nanopowders doped with a range of metal ions
  80. Luminescence properties of zinc oxide nanopowders doped with Al ions obtained by the hydrothermal and vapour condensation methods.
  81. Mechanical property of nano-TiO2 dispersed Al65Cu20Ti15 amorphous/nanocrystalline matrix bulk composite prepared by mechanical alloying and high pressure sintering
  82. Fast luminescence in ZnO structures
  83. Oxygen defects related luminescence of ZrO2 nanocrystals
  84. Microwave technique applied on the hydrothermal synthesis and sintering of calcia stabilized zirconia nanoparticles
  85. Luminescence properties of cerium doped Y3Al5O12 nanopowders and nanoceramic
  86. Yttrium-Aluminum Garnet Synthesized in the Medium of Supercritical Fluids
  87. Advanced nanostructural zirconia ceramics for optical oxygen sensors
  88. Study of undoped and doped zirconia nanocrystals luminescence
  89. A new tool for nano-scale x-ray absorption spectroscopy and element-specific SNOM microscopy
  90. Doping of ZnO nanopowders with Mn, Ni and Cr In an ultrasound and microwave driver hydrothermal reaction
  91. Localization of rare-earth dopants in the lattice of nanocrystalline ZrO2 - EXAFS study
  92. Zirconia-based nanomaterials for oxygen sensor - generation, characterisation and optical properties
  93. Production of doped and non doped ceramics nanoparticles for optical applications
  94. Synthesis, sintering and properties of doped nanocrystalline powders of zirconia, zinc oxide and yttrium aluminum garnet (YAG)
  95. Characterization of nanocrystalline ZrO2 doped with Rare-Earth elements synthesized via High Pressure Hydrothermal Method
  96. Particle Size Distribution of ZrO2:Pr3+- Influences of pH, High Power Ultrasound, Surfactant and Dopant Quantity
  97. Time-Resolved Luminescence Characteristics of Doped YAG and YAP Nanopowders
  98. The luminescence properties of ZnO:Al nanopowders obtained by sol-gel and vaporization-condensation methods
  99. Cathodoluminescence of Al doped ZnO nanopowders
  100. Morphology of Al doped Zinc Oxide Obtained using Hydrothermal and Vapour Condensation Methods
  101. Luminescence and structural properties of rare-earth doped YAG nanoceramics
  102. Optimization of conditions of preparation of YAG nanopowders for sintering of translucent ceramics
  103. The influence of ZrO2 containing 10% Eu 3+ on the polyurethane hard domain structure of nano-composites with luminescence properties
  104. Growth and properties of ytterbium doped KY(WO4)2 nanocomposites
  105. Investigations on the utilization of nano zinc oxides synthesized by hydrothermal method in rubber compounds
  106. Luminescence of Europium doped ZrO2 nanopowder
  107. Doping of ZnO nanopowders with Mn and Cr in an ultrasound and microwave driven hydrothermal reaction
  108. Investigations of phase composition and grain size distribution in Pr doped ZrO2
  109. Nasze wyniki, zdania i sposoby ich realizacji
  110. Morphology of Al doped zinc oxide obtained by the vapour condensation method
  111. The comparison of the properties of YAG obtained by coprecipitation and SCR method
  112. Synthesis of nanopowders at elevated pressure and their characterisation - summary of work of the WG-002
  113. Accuracy of XRD size measurements of nanocrystals
  114. Morphology of Al-Doped Zinc Oxide Obtained by the Vapour Condensation Methods
  115. SWOT analysis of various reactors used for synthesis of nanopwoders in our Working Group
  116. Preliminary research on zirconia based optical oxygen sensor
  117. Preparation and electrical properties of the BaTiO3 nanoceramics
  118. Current trends in the development of metallic nanomaterials: results of a study carried out within the EC project Nanoroad SME
  119. Microstructural Evolution in Mechanical Alloying and Hot Pressing of Aluminium and 316 Stainless Steel Powder Blend
  120. Prediction of degree of localisation of misfit dislocation cores in intercrystalline interfaces based on interfacial adhesion
  121. Kinetic and thermodynamic factors leading to dissolution of cementite in pearlitic steel subjected to severe plastic deformation under pressure
  122. Yttria stabilized zirconia nanocrystals luminescence
  123. Application of XRD diffraction methods for determination of grain size distribution in nanoparticles
  124. Optical investigations of RE-doped YAG nanoceramics
  125. Electrical properties of nanocrystalline ZrO2 at high-pressure
  126. High-pressure Induced Structural Decomposition of RE-doped YAG Nanoceramics
  127. Synthesis of Al-doped ZnO nanomaterials with controlled luminescence properties
  128. Combination of ECAP and Hydrostatic Extrusion for ultra-fine grain (UFG) microstructure generation in 99.98% nickel.
  129. Mechanical properties and deformation behaviour of ultra-fine grained nickel.
  130. Grain Size and Grain Size Distribution of Nanocrystalline Pr-doped Zirconia Powders Obtained in High Pressure Microwave Reactor
  131. Influence of synthesis conditions on the particles size and the morphology of zinc oxide nanopowders
  132. Measuring the Grain Size Distribution of Pr-doped Zirconia Nanopowders obtained by Microwave Driven Hydrothermal Synthesis
  133. Excellent mechanical properties of UFG metals and alloys, subjected to combination of severe plastic deformation methods.
  134. An FT-IR Spectroscopic Investigation of Hydroxide Groups in Nano-Crystals of ZrO2.
  135. Development of microstructure and mechanical properties in nickel deformed by hydrostatic extrusion
  136. Structural and luminescence properties of yttrium-aluminum garnet (YAG) nanoceramics
  137. Biocompatibility of thin films based on hydrothermal synthesized HAp
  138. Hybrid HAp- maleic anhydride copolymer nanocomposites obtained by in situ functionalisation
  139. Fabrication and electrical properties of Eu3+:BaTiO3 nanoceramics for SOFC
  140. Luminescence of ZrO2 nanocrystals
  141. Molecular impurities in the luminescent ZnO nanocrystals
  143. X-Ray investigations of the natural and artificial White Etching Layer
  144. Diffusion and diffusion induced defects in GaN
  145. Excellent Mechanical Properties of Nickel Processed by High Pressure Techniques
  146. Microwave driven hydrothermal synthesis of iron oxide - the effect of process parameter on the properties of the nanopowders
  147. Relaxation processes in ZrO2 at high pressures
  148. Ceramic composites of the Al2O3-ZrO2 type obtained by the Direct Coagulation Casting Method
  149. Luminescence of ZrO2 and ZnO nanocrystals
  150. Luminescence mechanisms: from single crystals to nanocrystals
  151. Zinc oxide nanopowders obtained by the microwave-hydrothermal route
  152. Microwave driven hydrothermal synthesis of Pr-doped zirconia nanopowders
  153. New hydroxyapatite based nanomaterials for potential use in medical fields
  154. Color centers in YAP:Pr crystals
  155. Correlation between high-pressure ZrO2 electrical properties and crystallite size
  156. Precise determination of full Grain Size Distribution from diffraction peak profile as a result of kinematical theory of diffraction for polidispersive nanomaterials
  157. Pressure Effect on Grain Boundary Diffusion in Al Bicrystals
  158. Microstructure of Surface Layers of Raiways After Heavy Exploatation
  159. Normal Grain Growth in 2-d Strips of Polycrystalline Aluminium Under High Pressure
  160. Reaction Diffusion in Metallic Systems under High Pressure
  161. High Pressure Effect on Grain Boundary Wetting in Aluminium Bicrystals
  162. Pressure Effect on Interface Energy, Diffusion and Reactions
  163. Microwave-Hydrothermal Synthesis of Nanostructured Pr-Doped Zirconia Powders
  164. The Strain Induced Cementite Dissolution in Carbon Steels-Experimental Facts and Theoretical Approach
  165. Effect of SPD Grain Refinement and Peculiarity of Structure and Mechanical Properties of UFG Ni
  166. Luminescense of Nanosize ZrO2
  167. Structure, Morphology and Luminescence Properties of Pr-doped Nanocrystalline ZrO2 Obtained by Hydrothermal Method
  168. Nanostructure Formation on the Surface of Railway Tracks and Wheelsets
  169. Hydrothermal Synthesis of Zinc Oxide Nanopowders with Microwaves Applications
  170. Microwave Driven Hydrothermal Synthesis of Iron Oxide Nanopowders
  171. Indentation Technique for Determination if Mechanical Behavior of Nanomaterials (Bulk and Coatings)

Presentation: oral at E-MRS Fall Meeting 2005, Laser Ceramic Symposium, by Larisa Grigorjeva
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-05-31 12:07
Revised:   2009-06-07 00:44
Web science24.com
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine