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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/63910

Title: Lateral Size Selection of Surfactant-Stabilised Graphene Flakes using Size Exclusion Chromatography
Author: DUESBERG, GEORG STEFAN
COLEMAN, JONATHAN NESBIT
SMITH, RONAN
WIRTZ, CHRISTIAN
Sponsor: 
Name Grant Number
09/RFP/MTR2286
07/IN.1/I1772

Author's Homepage: http://people.tcd.ie/colemaj
http://people.tcd.ie/duesberg
http://people.tcd.ie/smithro
Keywords: Polymer science
graphene
Size Exclusion Chromatography
Transition electron microscopy
Issue Date: 2012
Citation: Ronan J Smith, Paul J King, Christian Wirtz, Georg S Duesberg, Jonathan N Coleman, Lateral Size Selection of Surfactant-Stabilised Graphene Flakes using Size Exclusion Chromatography, Chemical Physics Letters, 531, 2012, 169 172
Series/Report no.: Chemical Physics Letters
531
Abstract: Aqueous dispersions of graphene, stabilised by a surfactant, have been separated according to lateral flake size using size exclusion chromatography. Transition electron microscopy was used to characterise the flake size as a function of fraction number. While the stock dispersion had a mean lateral flake size of 0.6 μm, the separated fractions displayed clear size separation, with the second and fourteenth fractions displaying mean sizes of ∼1.2 and ∼0.5 microns respectively. Raman spectroscopy shows the flake D:G intensity ratio to scale inversely with the flake size indicating that any defects present are associated with flake edges rather than basal plane defects.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/63910
Appears in Collections:Physics (Scholarly Publications)

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