Journal
SMALL
Volume 10, Issue 4, Pages 741-749Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201301599
Keywords
in situ growth kinetics; ZnO nanowire; crystal growth; laser-assisted growth; hydrothermal growth
Categories
Funding
- NSF SINAM NSEC
Ask authors/readers for more resources
The laser-assisted hydrothermal growth kinetics of a cluster of ZnO nanowires are studied based on optical in situ growth monitoring. The growth yields are orders of magnitude higher than those of conventional hydrothermal methods that use bulk heating. This remarkable improvement is attributed to suppression of precursor depletion occurring by homogeneous growth reactions, as well as to enhanced mass transport. The obtained in situ data show gradually decaying growth kinetics even with negligible precursor consumption. It is revealed that the growth deceleration is caused by thermal deactivation resulting from heat dissipation through the growing nanowires. Finally, it is demonstrated that the tailored temporal modulation of the input power enables sustained growth to extended dimensions. These results provide a key to highly efficient use of growth precursors that has been pursued for industrial use of this functional metal oxide semiconductor.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available