Issue 19, 2013
From the journal:

Analyst

Multilayered nano-prism vertex tips for tip-enhanced Raman spectroscopy and imaging†

Taekyeong Kim,‡a   Ki-Seok Jeon,‡b   Kwang Heo,c   Hyung Min Kim,§b   Juhun Park,a   Yung Doug Suh*bd  and  Seunghun Hong*ace  

* Corresponding authors

a Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

b Laboratory for Advanced Molecular Probing (LAMP), Research Center for Convergence Nanotechnology, Korea Research Institute of Chemical Technology (KRICT), Daejeon, Korea
E-mail: ydsuh@krict.re.kr

c Interdisciplinary Program in Nano-Science and Technology, Seoul National University, Seoul 151-748, Korea

d School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea

e Department of Biophysics and Chemical Biology, Seoul National University, Seoul 151-748, Korea
E-mail: seunghun@snu.ac.kr

Abstract

We presented a scalable fabrication method for the preparation of multilayered nano-prism vertex (NV)-tips whose dimensions can be controlled for tip-enhanced Raman spectroscopy (TERS). The NV-tip had sharp vertices (diameter ∼20 nm) originated from the chemical lift-off process after the angle-grinding process, enabling high resolution imaging. TERS measurements were performed on brilliant cresyl blue (BCB) molecules using a Ag/Au NV-tip, revealing the enhanced field localization at the vertices of the NV-tip. Furthermore, we could observe the polarization effect of the NV-tip. Our NV-tips should be a powerful tool for basic research on TERS experiments and SPM applications.

Graphical abstract: Multilayered nano-prism vertex tips for tip-enhanced Raman spectroscopy and imaging

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Article information

DOI
https://doi.org/10.1039/C3AN00808H
Article type
Paper
Submitted
22 Apr 2013
Accepted
03 Jul 2013
First published
03 Jul 2013

Analyst, 2013,138, 5588-5593

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Multilayered nano-prism vertex tips for tip-enhanced Raman spectroscopy and imaging

T. Kim, K. Jeon, K. Heo, H. M. Kim, J. Park, Y. D. Suh and S. Hong, Analyst, 2013, 138, 5588 DOI: 10.1039/C3AN00808H

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