Atomic Structure of Reduced Graphene Oxide
Posted on 2010-04-14 - 00:00
Using high resolution transmission electron microscopy, we identify the specific atomic scale features in chemically derived graphene monolayers that originate from the oxidation−reduction treatment of graphene. The layers are found to comprise defect-free graphene areas with sizes of a few nanometers interspersed with defect areas dominated by clustered pentagons and heptagons. Interestingly, all carbon atoms in these defective areas are bonded to three neighbors maintaining a planar sp2-configuration, which makes them undetectable by spectroscopic techniques. Furthermore, we observe that they introduce significant in-plane distortions and strain in the surrounding lattice.
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Gómez-Navarro, Cristina; Meyer, Jannik C.; Sundaram, Ravi S.; Chuvilin, Andrey; Kurasch, Simon; Burghard, Marko; et al. (2016). Atomic Structure of Reduced Graphene Oxide. ACS Publications. Collection. https://doi.org/10.1021/nl9031617
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AUTHORS (8)
CG
Cristina Gómez-Navarro
JM
Jannik C. Meyer
RS
Ravi S. Sundaram
AC
Andrey Chuvilin
SK
Simon Kurasch
MB
Marko Burghard
KK
Klaus Kern
UK
Ute Kaiser