TY - JOUR
T1 - An aligned octahedral core in a nanocage
T2 - Synthesis, plasmonic, and catalytic properties
AU - Khairullina, Evgeniia
AU - Mosina, Kseniia
AU - Choueiri, Rachelle M.
AU - Paradis, Andre Philippe
AU - Petruk, Ariel Alcides
AU - Sciaini, German
AU - Krivoshapkina, Elena
AU - Lee, Anna
AU - Ahmed, Aftab
AU - Klinkova, Anna
N1 - Publisher Copyright:
This journal is © The Royal Society of Chemistry.
PY - 2019/2/21
Y1 - 2019/2/21
N2 - Plasmonic metal nanostructures with complex morphologies provide an important route to tunable optical responses and local electric field enhancement at the nanoscale for a variety of applications including sensing, imaging, and catalysis. Here we report a high-concentration synthesis of gold core-cage nanoparticles with a tethered and structurally aligned octahedral core and examine their plasmonic and catalytic properties. The obtained nanostructures exhibit a double band extinction in the visible-near infrared range and a large area electric field enhancement due to the unique structural features, as demonstrated using finite difference time domain (FDTD) simulations and confirmed experimentally using surface enhanced Raman scattering (SERS) tests. In addition, the obtained structures had a photoelectrochemical response useful for catalyzing the CO 2 electroreduction reaction. Our work demonstrates the next generation of complex plasmonic nanostructures attainable via bottom-up synthesis and offers a variety of potential applications ranging from sensing to catalysis.
AB - Plasmonic metal nanostructures with complex morphologies provide an important route to tunable optical responses and local electric field enhancement at the nanoscale for a variety of applications including sensing, imaging, and catalysis. Here we report a high-concentration synthesis of gold core-cage nanoparticles with a tethered and structurally aligned octahedral core and examine their plasmonic and catalytic properties. The obtained nanostructures exhibit a double band extinction in the visible-near infrared range and a large area electric field enhancement due to the unique structural features, as demonstrated using finite difference time domain (FDTD) simulations and confirmed experimentally using surface enhanced Raman scattering (SERS) tests. In addition, the obtained structures had a photoelectrochemical response useful for catalyzing the CO 2 electroreduction reaction. Our work demonstrates the next generation of complex plasmonic nanostructures attainable via bottom-up synthesis and offers a variety of potential applications ranging from sensing to catalysis.
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U2 - 10.1039/c8nr09731c
DO - 10.1039/c8nr09731c
M3 - Article
C2 - 30715071
AN - SCOPUS:85061561281
SN - 2040-3364
VL - 11
SP - 3378
EP - 3385
JO - Nanoscale
JF - Nanoscale
IS - 7
ER -