Journal
MATERIALS LETTERS
Volume 64, Issue 9, Pages 1120-1122Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2010.02.028
Keywords
Nanomaterials; SnO; Crystal growth; Nanobranch; Self-catalytic
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Branched nanostructures of SnO with a single crystalline tetragonal structure in the < 110 > longitudinal direction were vertically grown on silicon substrates using a low-temperature vapor transport process. The growth mechanism of SnO nanobranches was revealed as a multi-step process of V-L-S(vapor-liquid-solid) growth; initial condensation and coalescence of Sn vapors on the substrate formed a SnO buffer layer and was followed by the self-catalytic V-L-S growth of SnO nanotrunks. Secondly, additional condensation of Sn vapors on the (110) surface of the nanotrunk led to epitaxial growth of nanobranches in the < 110 > direction by the same self-catalytic V-L-S process. (C) 2010 Elsevier B.V. All rights reserved.
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