Strong interactive growth behaviours in solution-phase synthesis of three-dimensional metal oxide nanostructures

Title
Strong interactive growth behaviours in solution-phase synthesis of three-dimensional metal oxide nanostructures
Authors
박원일
Keywords
FIELD-EFFECT TRANSISTORS; NANOWIRE GROWTH; HYDROTHERMAL GROWTH; SURFACE-DIFFUSION; BEAM EPITAXY; ZNO NANORODS; KINETICS; ARRAYS; FILM
Issue Date
2015-02
Publisher
NATURE PUBLISHING GROUP
Citation
NATURE COMMUNICATIONS, v. 6, Page. 6325-6331
Abstract
Wet-chemical synthesis is a promising alternative to the conventional vapour-phase method owing to its advantages in commercial-scale production at low cost. Studies on nanocrystallization in solution have suggested that growth rate is commonly affected by the size and density of surrounding crystals. However, systematic investigation on the mutual interaction among neighbouring crystals is still lacking. Here we report on strong interactive growth behaviours observed during anisotropic growth of zinc oxide hexagonal nanorods arrays. In particular, we found multiple growth regimes demonstrating that the diameter of the rod is dependent on its height. Local interactions among the growing rods result in cases where height is irrelevant to the diameter, increased with increasing diameter or inversely proportional to the diameter. These phenomena originate from material diffusion and the size-dependent Gibbs-Thomson effect that are universally applicable to a variety of material systems, thereby providing bottom-up strategies for diverse three-dimensional nanofabrication.
URI
http://www.nature.com/ncomms/2015/150217/ncomms7325/full/ncomms7325.html?WT.ec_id=NCOMMS-20150218&spMailingID=48048169&spUserID=ODkwMTM2NjQyNgS2&spJobID=622175399&spReportId=NjIyMTc1Mzk5S0http://hdl.handle.net/20.500.11754/22177
ISSN
2041-1723
DOI
http://dx.doi.org/10.1038/ncomms7325
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE & ENGINEERING(신소재공학부) > Articles
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