Capillary force-driven, large-area alignment of multi-segmented nanowires
Author
Zhou, Xiaozhu
Zhou, Yu
Ku, Jessie C.
Zhang, Chuan
Mirkin, Chad A.
Date
2014Metadata
Show full item recordAbstract
We report the large-area alignment of multi-segmented nanowires
in nanoscale trenches facilitated by capillary forces. Electrochemically
synthesized nanowires between 120 and 250 nm in length are aligned and then
etched selectively to remove one segment, resulting in arrays of nanowires with
precisely controlled gaps varying between 2 and 30 nm. Crucial to this alignment
process is the dispersibility of the nanowires in solution which is achieved by
chemically modifying them with hexadecyltrimethylammonium bromide. We
found that, even without the formation of an ordered crystalline phase at the droplet edges, the nanowires can be aligned in high yield. To illustrate
the versatility of this approach as a nanofabrication technique, the aligned nanowires were used for the fabrication of arrays of gapped graphene
nanoribbons and SERS substrates.
Description
Article of record as published may be found at http://dx.doi.org/10.1021/nn405627s
Rights
Copyright is reserved by the copyright owner.Collections
Related items
Showing items related by title, author, creator and subject.
-
Near field imaging of charge transport in gallium nitride and zinc oxide nanostructures
Cole, Richard Adam (Monterey, California. Naval Postgraduate School, 2010-12);A novel technique for imaging minority carrier diffusion in semiconductor nanostructures has been applied to the characterization of GaN and ZnO nanowires and nanobelts. Near field scanning optical microscopy (NSOM) is ... -
A modal approximation for the mutual radiation impedance for spherical sources and acoustic wave scattering using an improved ATILA Finite Element code
Day, Joseph L. (Monterey, California: Naval Postgraduate School, 1999-09);A modal approximation for the self and mutual radiation impedances has been derived for arrays of spherical transducers with small ka values, where ka is the acoustic wave number multiplied by the radius of the sphere. I ... -
Measurement of minority charge carrier diffusion length in Gallium Nitride nanowires using Electron Beam InducedCurrent (EBIC)
Ong, Chiou Perng (Monterey, California. Naval Postgraduate School, 2009-12);Electron Beam Induced Current (EBIC) measurements were performed on GaN nanowires to determine minority charge carrier diffusion length, d L . Although EBIC has been used to characterize bulk and thin film materials, ...