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Gold Nanowire Bundles Grown Radially Outward from Silicon Micro pillars

Title
Gold Nanowire Bundles Grown Radially Outward from Silicon Micro pillars
Author
이해원
Keywords
hierarchical nanostructures; gold nanowires; silicon nanowire arrays; SERS substrates; ultrasensitive detection
Issue Date
2015-09
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v. 7, NO 32, Page. 17582-17586
Abstract
One-dimensional (1D) micro- and nanostructures have become increasingly popular because of their tremendous prospect in various applications. While the design and fabrication of these structures from a single component in two-dimensional (2D) arrays is common, the attainment of hierarchical three-dimensional (3D) architectures made up of multicomponent one-dimensional structures is rare. Herein we report, for the first time, the lateral growth of gold nanowires from the sidewalls of substrate grown silicon micropillars to form a unique "wire-on-pillar" architecture. Unlike zero-dimensional (OD) point-like, 1D linear, and 2D planar Au structures, the obtained 3D "wire-on-pillar" Au architecture provides abundant hotspots between adjacent Au wires, which led to remarkably high surface-enhanced Raman scattering (SERS) signals.
URI
http://pubs.acs.org/doi/abs/10.1021/acsami.5b05161http://hdl.handle.net/20.500.11754/27443
ISSN
1944-8244
DOI
10.1021/acsami.5b05161
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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