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Issue 49, 2018, Issue in Progress
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Development of a candidate reference sample for the characterization of tip-enhanced Raman spectroscopy spatial resolution

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Abstract

Tip-Enhanced Raman Spectroscopy (TERS) is a topographic and chemical analysis technique with nanoscale resolution, consisting of the combination of Scanning Probe Microscopy (SPM) and Localized Surface Plasmon Resonance (LSPR) for the enhancement of Raman scattering in the vicinity of the probe. The quantification of spatial resolution represents an important issue, and, as of now, standards for calibration are not available. In the present work a candidate reference sample for TERS measurements was fabricated. It consists of a flat, conductive gold surface with a nanometric grating of a self-assembled monolayer of Raman-active organic molecules fabricated by an optimized Electron Beam Lithography (EBL) method to replicate established SPM calibration standards. Its feasibility as a TERS standard was tested by STM-TERS imaging.

Graphical abstract: Development of a candidate reference sample for the characterization of tip-enhanced Raman spectroscopy spatial resolution

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Supplementary files

Article information


Submitted
02 May 2018
Accepted
30 Jul 2018
First published
03 Aug 2018

This article is Open Access

RSC Adv., 2018,8, 27863-27869
Article type
Paper

Development of a candidate reference sample for the characterization of tip-enhanced Raman spectroscopy spatial resolution

A. Sacco, D. Imbraguglio, Andrea M. Giovannozzi, C. Portesi and A. M. Rossi, RSC Adv., 2018, 8, 27863
DOI: 10.1039/C8RA03762K

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