Journal
NANOTECHNOLOGY
Volume 20, Issue 32, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/20/32/325604
Keywords
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Funding
- KBSI Research Initiative [T29506]
- Korea Research Council of Fundamental Science and Technology (KRCF)
- National Research Council of Science & Technology (NST), Republic of Korea [T29400, K09010] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Porous gold nanofibers are fabricated through templated electrochemical routes in porous alumina membranes. Gold-silver alloy is electrochemically deposited in the nanocylinders of the porous alumina templates and then the silver phase is selectively dealloyed. The resulting nanofibers present a nanoporous network with a pore dimension of similar to 10 nm and notable surface-enhanced Raman scattering (SERS) efficiencies which are at least seven times higher than from the smooth solid gold nanofibers without porosity. The relative SERS enhancement on porous gold is directly proved by imaging with a Raman microscope for conjugated porous gold/solid gold single nanorods.
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