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Probing the Nature of Defects in Graphene by Raman Spectroscopy

Eckmann, Axel and Felten, Alexandre and Mishchenko, Artem and Britnell, Liam and Krupke, Ralph and Novoselov, Kostya S. and Casiraghi, Cinzia (2012):
Probing the Nature of Defects in Graphene by Raman Spectroscopy.
In: Nano Letters, pp. 3925-3930, 12, (8), ISSN 1530-6984,
[Online-Edition: http://dx.doi.org/10.1021/nl300901a],
[Article]

Abstract

Raman spectroscopy is able to probe disorder in graphene through defect-activated peaks. It is of great interest to link these features to the nature of disorder. Here we present a detailed analysis of the Raman spectra of graphene containing different type of defects. We found that the intensity ratio of the D and D′ peak is maximum (13) for sp3-defects, it decreases for vacancy-like defects (7), and it reaches a minimum for boundaries in graphite (3.5). This makes Raman Spectroscopy a powerful tool to fully characterize graphene.

Item Type: Article
Erschienen: 2012
Creators: Eckmann, Axel and Felten, Alexandre and Mishchenko, Artem and Britnell, Liam and Krupke, Ralph and Novoselov, Kostya S. and Casiraghi, Cinzia
Title: Probing the Nature of Defects in Graphene by Raman Spectroscopy
Language: English
Abstract:

Raman spectroscopy is able to probe disorder in graphene through defect-activated peaks. It is of great interest to link these features to the nature of disorder. Here we present a detailed analysis of the Raman spectra of graphene containing different type of defects. We found that the intensity ratio of the D and D′ peak is maximum (13) for sp3-defects, it decreases for vacancy-like defects (7), and it reaches a minimum for boundaries in graphite (3.5). This makes Raman Spectroscopy a powerful tool to fully characterize graphene.

Journal or Publication Title: Nano Letters
Volume: 12
Number: 8
Uncontrolled Keywords: Graphene; Raman spectroscopy; defects; conductive AFM
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 16 Aug 2012 07:08
Official URL: http://dx.doi.org/10.1021/nl300901a
Identification Number: doi:10.1021/nl300901a
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