Issue 17, 2016
From the journal:

Analyst

A tunable Au core–Ag shell nanoparticle tip for tip-enhanced spectroscopy†

Woong Kim,‡a   Nara Kim,‡b   Eunbyoul Lee,§c   Duckhoe Kim,a   Zee Hwan Kim*b  and  Joon Won Park*a  

* Corresponding authors

a Department of Chemistry, Pohang University of Science and Technology, Pohang, Republic of Korea
E-mail: jwpark@postech.ac.kr

b Department of Chemistry, Seoul National University, Seoul 151-742, Korea
E-mail: zhkim@snu.ac.kr

c Department of Chemistry, Korea University, Seoul 136-701, Korea

Abstract

A single Au nanoparticle (NP) with a diameter of 5 nm was transferred to the end of a Si-tip through a picking process, and an Ag shell with a controlled thickness was formed on the Au core. By carrying out tip-enhanced Raman scattering (TERS) measurements on biphenyl-4-thiol (BPT) with the Au@Ag NP–tip (overall diameter of 22–60 nm), we confirm that such tips show a plasmonic local-field enhancement which is sufficient for tip-enhanced spectro-microscopy.

Graphical abstract: A tunable Au core–Ag shell nanoparticle tip for tip-enhanced spectroscopy

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C6AN00035E
Article type
Communication
Submitted
06 Jan 2016
Accepted
17 Feb 2016
First published
17 Feb 2016
This article is Open Access
Creative Commons BY license

Analyst, 2016,141, 5066-5070

Permissions

Request permissions

A tunable Au core–Ag shell nanoparticle tip for tip-enhanced spectroscopy

W. Kim, N. Kim, E. Lee, D. Kim, Z. Hwan Kim and J. Won Park, Analyst, 2016, 141, 5066 DOI: 10.1039/C6AN00035E

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements