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Anomalous nucleation of gold nanoparticles on silicon substrate and monitoring the growth of ZnO nanowires on such structures

Published online by Cambridge University Press:  14 May 2009

M. Pazoki ,
Y. Abdi  and
E. Arzi
M. Pazoki
Affiliation:
Nanophysics Research Laboratory, Department of Physics, University of Tehran, Tehran, Iran
Y. Abdi
Affiliation:
Nanophysics Research Laboratory, Department of Physics, University of Tehran, Tehran, Iran
E. Arzi*
Affiliation:
Nanophysics Research Laboratory, Department of Physics, University of Tehran, Tehran, Iran
*
arzi@khayam.ut.ac.ir
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Abstract

Nucleation of a gold catalyst on a (100) oriented silicon substrate was extensively investigated. An anomalous mechanism of nucleation was observed in the grain formation of gold nanoislands. The chemical vapour deposition method was employed to grow zinc oxide nanowires. Zinc powder and oxygen gas were used as reaction sources for the growth. Different shaped ZnO nanowires were obtained for different nucleation mechanisms. The nucleation mechanism and growth evolution were monitored by scanning electron microscopy and atomic force microscopy.

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