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나노물질 및 화학반응 연구단
나노물질 및 화학반응 연구단
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Guided formation of sub-5 nm interstitial gaps between plasmonic nanodisks

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Title
Guided formation of sub-5 nm interstitial gaps between plasmonic nanodisks
Author(s)
Son J.G.; Sang Woo Han; Wi J.-S.; Lee T.G.
Publication Date
2015-05
Journal
NANOSCALE, v.7, no.18, pp.8338 - 8342
Publisher
ROYAL SOC CHEMISTRY
Abstract
To achieve a reliable formation of a surface-enhanced Raman scattering (SERS) sensor with evenly distributed hot spots on a wafer scale substrate, we propose a hybrid approach combining physical nanolithography for preparing Au nanodisks and chemical Au reduction for growing them. During the chemical growth, the interstitial distance between the nanodisks decreased from 60 nm to sub-5 nm. The resulting patterns of the nanogap-rich Au nanodisks successfully enhance the SERS signal, and its intensity map shows only a 5% or less signal variation on the entire sample. This journal is © The Royal Society of Chemistry
URI
https://pr.ibs.re.kr/handle/8788114/2176
ISSN
2040-3364
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
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