Skip to main content

A Reusable Surface-Enhanced Raman Scattering (SERS) Substrate Prepared by Atomic Layer Deposition of Alumina on a Multi-Layer Gold and Silver Film

Buy Article:

$29.00 plus tax (Refund Policy)

Abstract:

A thermally stable, reusable surface-enhanced Raman scattering (SERS) substrate consisting of a gold/silver bi-layer film with a protective alumina coating is reported. The film is synthesized by thermally evaporating sequential layers of gold and silver followed by coating an ultra-thin alumina layer using atomic layer deposition. The use of gold as the foundational layer improves the thermal stability of the metal bi-layer film while providing the additional ability to tune the SERS response. Deposition of the thin alumina overlayer on the bi-layer film creates a SERS substrate capable of enduring multiple high-temperature exposures to 400 °C with minimal loss of enhancement capabilities. We demonstrate the multi-use capability of the substrate by measuring the SERS spectrum of rhodamine 6G followed by a thermal treatment at 400 °C to remove the analyte. A representative substrate was used to acquire SERS spectra of rhodamine 6G up to five repeat measurements, thus establishing the reusability of this relatively simple, inexpensive, and stable substrate.

Keywords: ATOMIC LAYER DEPOSITION; REUSABLE SUBSTRATES; SERS; SURFACE-ENHANCED RAMAN SCATTERING

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/10-05930

Affiliations: 1: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA. dais@ornl.gov mahurinsm@ornl.gov 2: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA; Dept. of Chemistry, University of Tennessee, Knoxville, Tennessee, USA

Publication date: April 1, 2011

More about this publication?
sas/sas/2011/00000065/00000004/art00014
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more