Kirkman, Paul M., Guell, Aleix G., Cuharuc, Anatolii S. and Unwin, Patrick R. (2014) Spatial and temporal control of the diazonium modification of sp2 carbon surfaces. Journal of the American Chemical Society, Volume 136 (Number 1). pp. 36-39. doi:10.1021/ja410467e ISSN 0002-7863.

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Abstract

Interest in the controlled chemical functionalization of sp2 carbon materials using diazonium compounds has been recently reignited, particularly as a means to generate a band gap in graphene. We demonstrate local diazonium modification of pristine sp2 carbon surfaces, with high control, at the micrometer scale through the use of scanning electrochemical cell microscopy (SECCM). Electrochemically driven diazonium patterning is investigated at a range of driving forces, coupled with surface analysis using atomic force microscopy (AFM) and Raman spectroscopy. We highlight how the film density, level of sp2/sp3 rehybridization and the extent of multilayer formation can be controlled, paving the way for the use of localized electrochemistry as a route to controlled diazonium modification.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Science > Chemistry
Journal or Publication Title:	Journal of the American Chemical Society
Publisher:	American Chemical Society
ISSN:	0002-7863
Official Date:	2014
Dates:	Date Event 2014 Published
Volume:	Volume 136
Number:	Number 1
Page Range:	pp. 36-39
DOI:	10.1021/ja410467e
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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