Patterned nanoporous gold as an effective SERS template

We demonstrate large area two-dimensional arrays of patterned nanoporous gold for use as easy-to-fabricate, cost-effective, and stable surface enhanced Raman scattering (SERS) templates. Using a simple one-step direct imprinting process, subwavelength nanoporous gold (NPG) gratings are defined by de...

Full description

Saved in:
Bibliographic Details
Published in:Nanotechnology 2011-07, Vol.22 (29), p.295302-295302
Main Authors: Jiao, Yang, Ryckman, Judson D, Ciesielski, Peter N, Escobar, Carlos A, Jennings, G Kane, Weiss, Sharon M
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We demonstrate large area two-dimensional arrays of patterned nanoporous gold for use as easy-to-fabricate, cost-effective, and stable surface enhanced Raman scattering (SERS) templates. Using a simple one-step direct imprinting process, subwavelength nanoporous gold (NPG) gratings are defined by densifying appropriate regions of a NPG film. Both the densified NPG and the two-dimensional grating pattern are shown to contribute to the SERS enhancement. The resulting substrates exhibit uniform SERS enhancement factors of at least 10(7) for a monolayer of adsorbed benzenethiol molecules.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/22/29/295302