%0 Journal Article
%T Raman Signatures of Single Layer Graphene Dispersed in Degassed Water, “‘Eau de Graphene”’
%+ Centre de Recherche Paul Pascal (CRPP)
%+ Laboratoire Charles Coulomb (L2C)
%A Bepete, George
%A Pénicaud, Alain
%A Drummond, Carlos
%A Anglaret, Eric
%< avec comité de lecture
%Z L2C:16-197 - CRPP 116-12329
%@ 1932-7447
%J Journal of Physical Chemistry C
%I American Chemical Society
%V 120
%P http://dx.doi.org/10.1021/acs.jpcc.6b07288
%8 2016-12-01
%D 2016
%R 10.1021/acs.jpcc.6b07288
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]Journal articles
%X We report a detailed Raman study of single layergraphene dispersed in degassed water without additives (SLGiw), so-called “‘eau de graphene”’ (EdG).23 The most characteristic signature of SLGiw is a narrow (28 ± 2 cm−1) and symmetric 2D band. The intensity of the D band is dominated by the contribution of sp3 defects due to slight functionalization of the basal-planes. The density of defects is estimated in the range 200-650 ppm by studying thin films prepared from EdG. These defects can be fully and easily cured by annealing the films at 800 °C. The position of the G and 2D bands, blue-shifted with respect to pristine SLG, are assigned to moderate biaxial compressive strain (≈0.09 ± 0.02%) and likely weak n doping (<4 × 1012 electrons/cm2) of SLGiw.
%G English
%L hal-01407045
%U https://hal.science/hal-01407045
%~ CNRS
%~ CRPP
%~ L2C
%~ INC-CNRS
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021
%~ TEST2-HALCNRS