Mechanical exfoliation of epitaxial graphene on Ir(111) enabled by Br 2 intercalation

Herbig C, Kaiser M, Bendiab N, Schumacher S, Förster D, Coraux J, Meerholz K, Michely T, Busse C

Research article (journal)

Abstract

We show here that Br2 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.

Details zur Publikation

Release year: 2012
Language in which the publication is written: English
Link to the full text: http://www.scopus.com/inward/record.url?eid=2-s2.0-84864199575&partnerID=40&md5=e95976c186a578c1735fb1383c76fce1