title: High-yield fabrication of nm-size gaps in monolayer CVD graphene.
abstract: Herein we demonstrate the controlled and reproducible fabrication of sub-5 nm wide gaps in single-layer graphene electrodes. The process is implemented for graphene grown via chemical vapor deposition using an electroburning process at room temperature and in vacuum. A yield of over 95% for the gap formation is obtained. This approach allows producing single-layer graphene electrodes for molecular electronics at a large scale. Additionally, from Raman spectroscopy and electroburning carried out simultaneously, we can follow the heating process and infer the temperature at which the gap formation happens.
authors.affiliation: Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland. c.nef@unibas.ch michel.calame@unibas.ch.
authors.forename: Cornelia
authors.initials: C
authors.lastname: Nef
authors.forename: László
authors.initials: L
authors.lastname: Pósa
authors.forename: Péter
authors.initials: P
authors.lastname: Makk
authors.forename: Wangyang
authors.initials: W
authors.lastname: Fu
authors.forename: András
authors.initials: A
authors.lastname: Halbritter
authors.forename: Christian
authors.initials: C
authors.lastname: Schönenberger
authors.forename: Michel
authors.initials: M
authors.lastname: Calame