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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

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.

Original languageEnglish (US)
Title of host publicationZinc Oxide Materials and Devices III
DOIs
StatePublished - Apr 21 2008
EventZinc Oxide Materials and Devices III - San Jose, CA, United States
Duration: Jan 20 2008Jan 23 2008

Publication series

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

Other

OtherZinc Oxide Materials and Devices III
CountryUnited States
CitySan Jose, CA
Period1/20/081/23/08

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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