Issue 13, 2013
From the journal:

RSC Advances

Templated silver nanocube arrays for single-molecule SERS detection†

Cheng Fang,‡a   Daniel Brodoceanu,b   Tobias Krausb  and  Nicolas Hans Voelcker*c  

* Corresponding authors

a School of Chemical and Physical Sciences, Flinders University, Bedford Park, SA 5042, Australia

b Leibniz Institute for New Materials (INM), Saarbruecken, Germany

c Mawson Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
E-mail: nico.voelcker@unisa.edu.au

Abstract

We describe the self-assembly of silver nanocubes (AgNC) into dense bowl-shaped arrays using a template made from polystyrene nanospheres (PSNS). Interestingly, we found that most AgNCs were arranged facet-to-facet. When used as substrates for surface-enhanced Raman scattering (SERS), we observed that the SERS hot spot positions were located at the corners of the cubes. This was confirmed using the formation of a self-assembled monolayer (SAM) of 1-dodecanethiol (DDT) covering the cubes' facet surface, whilst the pinholes in the DDT SAM at the corners were subsequently filled with 2-mercaptopyridine (MPy). Due to the high enhancement from the densely arranged AgNCs, single molecule detection was achieved from this SERS substrate and evidenced using the bi-analyte Raman technique.

Graphical abstract: Templated silver nanocube arrays for single-molecule SERS detection

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C3RA22457K
Article type
Paper
Submitted
09 Oct 2012
Accepted
28 Jan 2013
First published
28 Jan 2013

RSC Adv., 2013,3, 4288-4293

Permissions

Request permissions

Templated silver nanocube arrays for single-molecule SERS detection

C. Fang, D. Brodoceanu, T. Kraus and N. H. Voelcker, RSC Adv., 2013, 3, 4288 DOI: 10.1039/C3RA22457K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements