Issue 41, 2021

Studying 2D materials with advanced Raman spectroscopy: CARS, SRS and TERS

Abstract

Raman spectroscopy has been established as a valuable tool to study and characterize two-dimensional (2D) systems, but it exhibits two drawbacks: a relatively weak signal response and a limited spatial resolution. Recently, advanced Raman spectroscopy techniques, such as coherent anti-Stokes spectroscopy (CARS), stimulated Raman scattering (SRS) and tip-enhanced Raman spectroscopy (TERS), have been shown to overcome these two limitations. In this article, we review how useful physical information can be retrieved from different 2D materials using these three advanced Raman spectroscopy and imaging techniques, discussing results on graphene, hexagonal boron-nitride, and transition metal di- and mono-chalcogenides, thus providing perspectives for future work in this early-stage field of research, including similar studies on unexplored 2D systems and open questions.

Graphical abstract: Studying 2D materials with advanced Raman spectroscopy: CARS, SRS and TERS

Article information

Article type
Perspective
Submitted
15 Jul 2021
Accepted
22 Sep 2021
First published
22 Sep 2021

Phys. Chem. Chem. Phys., 2021,23, 23428-23444

Studying 2D materials with advanced Raman spectroscopy: CARS, SRS and TERS

L. M. Malard, L. Lafeta, R. S. Cunha, R. Nadas, A. Gadelha, L. G. Cançado and A. Jorio, Phys. Chem. Chem. Phys., 2021, 23, 23428 DOI: 10.1039/D1CP03240B

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