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Proceedings Paper

MOCVD growth of ZnO nanostructures using Au droplets as catalysts
Author(s): 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
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Paper 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.

Paper Details

Date Published: 7 March 2008
PDF: 6 pages
Proc. SPIE 6895, Zinc Oxide Materials and Devices III, 68950Z (7 March 2008); doi: 10.1117/12.775632
Show Author Affiliations
V. E. Sandana, Nanovation (France)
Northwestern Univ. (United States)
École Polytechnique (France)
D. J. Rogers, Nanovation (France)
F. H. Teherani, Nanovation (France)
R. McClintock, Northwestern Univ. (United States)
M. Razeghi, Northwestern Univ. (United States)
H.-J. Drouhin, École Polytechnique (France)
M. C. Clochard, École Polytechnique (France)
V. Sallet, GEMAC (France)
G. Garry, Thales Research and Technology (France)
F. Fayoud, GEMAC (France)

Published in SPIE Proceedings Vol. 6895:
Zinc Oxide Materials and Devices III
Ferechteh Hosseini Teherani; Cole W. Litton, Editor(s)

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