Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5383205 | Chemical Physics Letters | 2012 | 4 Pages |
Abstract
⺠Aqueous dispersions of surfactant stabilised graphene were passed through a size exclusion chromatography column. ⺠The resulting fractions were drop cast onto grids and flake sizes measured using transmission electron microscopy. ⺠Thin films were vacuum filtered from these fractions and examined using Raman spectroscopy. ⺠The first fraction showed an increase in average flake size from that of the stock by a factor of 2. ⺠The flake D:G intensity ratio scales inversely with flake size showing defects to be edge related rather than basal plane.
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Authors
Ronan J. Smith, Paul J. King, Christian Wirtz, Georg S. Duesberg, Jonathan N. Coleman,