Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 24, Issue 31, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/24/31/314208
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Funding
- DFG [BU 2197/2-1]
- European Commission [EU NMP3-SL-2010-246073]
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We show here that Br-2 intercalation is an efficient method to enable exfoliation of epitaxial graphene on metals by adhesive tape. We exemplify this method for high-quality graphene of macroscopic extension on Ir(111). The sample quality and the transfer process are monitored using low-energy electron diffraction (LEED), scanning tunneling microscopy (STM), scanning electron microscopy (SEM) and Raman spectroscopy. The developed process provides an opportunity for preparing graphene of strictly monatomic thickness and well-defined orientation including the transfer to poly(ethylene terephthalate) (PET) foil.
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