Published May 25, 2009 | Version v1
Journal article Metadata-only

Geometric effect on surface enhanced Raman scattering of nanoporous gold: Improving Raman scattering by tailoring ligament and nanopore ratios

Creators

  • 1. WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)

Description

We have synthesized nanoporous gold (NPG) films with a nanostructure consisting of small nanopores and large gold ligaments by the combination of chemical dealloying and electroless plating. The NPG films exhibit dramatic improvement in surface enhanced Raman scattering (SERS) in comparison with the conventional NPG. The superior SERS effect of the NPG films results from the confluence effect of enhanced local surface plasmon fields and electromagnetic coupling between ligaments, as well as the weak plasmon damping with increasing gold ligament sizes.

Additional details

Identifiers

DOI
10.1063/1.3143628;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
94
Journal Issue
21
Journal Page Range
p. 213109-213109.3
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41040169
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
ELECTROPLATING; FABRICATION; GOLD; LIGAMENTS; NANOSTRUCTURES; PLASMONS; RAMAN EFFECT; THIN FILMS
Descriptors DEC
ANIMAL TISSUES; BODY; CONNECTIVE TISSUE; DEPOSITION; ELECTRODEPOSITION; ELECTROLYSIS; ELEMENTS; FILMS; LYSIS; METALS; PLATING; QUASI PARTICLES; SURFACE COATING; TRANSITION ELEMENTS

Optional Information

Notes
(c) 2009 American Institute of Physics