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MOCVD growth of ZnO nanostructures using Au droplets as catalysts

  • V. E. Sandana
  • , D. J. Rogers
  • , F. H. Teherani
  • , R. McClintock
  • , M. Razeghi
  • , H. J. Drouhin
  • , M. C. Clochard
  • , V. Sallet
  • , G. Garry
  • , F. Fayoud
  • Nanovation Sarl
  • Northwestern University
  • CNRS/LPSC
  • Thales Research & Technology

Résultats de recherche: Le chapitre dans un livre, un rapport, une anthologie ou une collectionContribution à une conférenceRevue par des pairs

Résumé

ZnO nanostructures were synthesised by Metal Organic Chemical Vapor Deposition growth on Si (100) and c-Al2O3 substrates coated with a 5nm thick layer of Au. The Au coated substrates were annealed in air prior to deposition of ZnO so as to promote formation of Au nanodroplets. The development of the nanodroplets was studied as a function of annealing duration and temperature. Under optimised conditions, a relatively homogeneous distribution of regular Au nanodroplets was obtained. Using the Au nanodroplets as a catalyst, MOCVD growth of ZnO nanostructures was studied. Scanning electron microscopy revealed nanostructures with various forms including commonly observed structures such as nanorods, nanoneedles and nanotubes. Some novel nanostructures were also observed, however, which resembled twist pastries and bevelled-multifaceted table legs.

langue originaleAnglais
titreZinc Oxide Materials and Devices III
Les DOIs
étatPublié - 21 avr. 2008
EvénementZinc Oxide Materials and Devices III - San Jose, CA, États-Unis
Durée: 20 janv. 200823 janv. 2008

Série de publications

NomProceedings of SPIE - The International Society for Optical Engineering
Volume6895
ISSN (imprimé)0277-786X

Une conférence

Une conférenceZinc Oxide Materials and Devices III
Pays/TerritoireÉtats-Unis
La villeSan Jose, CA
période20/01/0823/01/08

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