1 research outputs found
Inverse Stellation of CuAu-ZnO Multimetallic-Semiconductor Nanostartube for Plasmon-Enhanced Photocatalysis
One-dimensional
(1D) metallic nanocrystals constitute an important
class of plasmonic materials for localization of light into subwavelength
dimensions. Coupled with their intrinsic conductive properties and
extended optical paths for light absorption, metallic nanowires are
prevalent in light-harnessing applications. However, the transverse
surface plasmon resonance (SPR) mode of traditional multiply twinned
nanowires often suffers from weaker electric field enhancement due
to its low degree of morphological curvature in comparison to other
complex anisotropic nanocrystals. Herein, simultaneous anisotropic
stellation and excavation of multiply twinned nanowires are demonstrated
through a site-selective galvanic reaction for a pronounced manipulation
of light–matter interaction. The introduction of longitudinal
extrusions and cavitation along the nanowires leads to a significant
enhancement in plasmon field with reduced quenching of localized surface
plasmon resonance (LSPR). The as-synthesized multimetallic nanostartubes
serve as a panchromatic plasmonic framework for incorporation of photocatalytic
materials for plasmon-assisted solar fuel production