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Durham Research Online
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Facile technique for the removal of metal contamination from graphene.

Wells, G. H. and Hunt, M. R. C. and Hopf, T and Vassilevski, K. V. and Escobedo-Cousin, E. and Horsfall, A. B. and Goss, J. P. and O'Neill, A. (2015) 'Facile technique for the removal of metal contamination from graphene.', Journal of vacuum science & technology B: nanotechnology and microelectronics : materials, processing, measurement, and phenomena., 33 (5). 051802.

Abstract

Metal contamination deposited on few-layer graphene (3 ± 1 monolayers) grown on SiC(0001) was successfully removed from the surface, using low cost adhesive tape. More than 99% of deposited silver contamination was removed from the surface via peeling, causing minimal damage to the graphene. A small change in the adhesion of graphene to the SiC(0001) substrate was indicated by changes observed in pleat defects on the surface; however, atomic resolution images show the graphene lattice remains pristine. Thin layers of contamination deposited via an electron gun during Auger electron spectroscopy/low energy electron diffraction measurements were also found to be removable by this technique. This contamination showed similarities to “roughened” graphene previously reported in the literature.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1116/1.4928422
Publisher statement:© 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Wells, G. H. and Hunt, M. R. C. and Hopf, T and Vassilevski, K. V. and Escobedo-Cousin, E. and Horsfall, A. B. and Goss, J. P. and O'Neill, A. (2015) 'Facile technique for the removal of metal contamination from graphene.', Journal of vacuum science & technology B: nanotechnology and microelectronics : materials, processing, measurement, and phenomena., 33 (5). 051802 and may be found at http://dx.doi.org/10.1116/1.4928422
Date accepted:24 July 2015
Date deposited:10 January 2016
Date of first online publication:11 August 2015
Date first made open access:No date available

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