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Eur. Phys. J. Appl. Phys. 47, 10602 (2009)
DOI: 10.1051/epjap/2009090
Anomalous nucleation of gold nanoparticles on silicon substrate and monitoring the growth of ZnO nanowires on such structures
M. Pazoki, Y. Abdi and E. ArziNanophysics Research Laboratory, Department of Physics, University of Tehran, Tehran, Iran
arzi@khayam.ut.ac.ir
Received: 22 October 2008 / Received in final form: 19 January 2009 / Accepted: 17 March 2009 / Published online: 14 May 2009
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.
61.46.km - Structure of nanowires and nanorods (long, free or loosely attached, quantum wires and quantum rods, but not gate-isolated embedded quantum wires).
62.23.hj - Nanowires.
63.22.kn - Clusters and nanocrystals.
© EDP Sciences 2009
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