title: Molecular Caging of Graphene with Cyclohexane: Transfer and Electrical Transport.
abstract: Transfer of large, clean, crack- and fold-free graphene sheets is a critical challenge in the field of graphene-based electronic devices. Polymers, conventionally used for transferring two-dimensional materials, irreversibly adsorb yielding a range of unwanted chemical functions and contaminations on the surface. An oil-water interface represents an ideal support for graphene. Cyclohexane, the oil phase, protects graphene from mechanical deformation and minimizes vibrations of the water surface. Remarkably, cyclohexane solidifies at 7 °C forming a plastic crystal phase molecularly conforming graphene, preventing the use of polymers, and thus drastically limiting contamination. Graphene floating at the cyclohexane/water interface exhibits improved electrical performances allowing for new possibilities of in situ, flexible sensor devices at a water interface.
authors.affiliation: Faculty of Science, Leiden Institute of Chemistry, Leiden University , Einsteinweg 55, 2333CC Leiden, The Netherlands.
authors.forename: Liubov A
authors.initials: LA
authors.lastname: Belyaeva
authors.affiliation: Faculty of Science, Leiden Institute of Chemistry, Leiden University , Einsteinweg 55, 2333CC Leiden, The Netherlands.
authors.forename: Wangyang
authors.initials: W
authors.lastname: Fu
authors.affiliation: Faculty of Science, Leiden Institute of Chemistry, Leiden University , Einsteinweg 55, 2333CC Leiden, The Netherlands.
authors.forename: Hadi
authors.initials: H
authors.lastname: Arjmandi-Tash
authors.affiliation: Faculty of Science, Leiden Institute of Chemistry, Leiden University , Einsteinweg 55, 2333CC Leiden, The Netherlands.
authors.forename: Grégory F
authors.initials: GF
authors.lastname: Schneider