title: Synthesis and characterization of electrically conductive polyethylene-supported graphene films.
abstract: We describe a simple mechanical approach for low-density polyethylene film coating by multilayer graphene. The technique is based on the exfoliation of nanocrystalline graphite (few-layer graphene) by application of shear stress and allows to obtain thin graphene layers on the plastic substrate. We report on the temperature dependence of electrical resistance behaviors in films of different thickness. The experimental results suggest that the semiconducting behavior observed at low temperature can be described in the framework of the Efros-Shklovskii variable-range-hopping model. The obtained films exhibit good electrical conductivity and transparency in the visible spectral region.
  72.80.Vp; 78.67.Wj; 78.66.Qn; 85.40.Hp.
authors.affiliation: Institute for Polymer, Composite and Biomedical Materials, National Research Council, Piazzale E. Fermi 1, Portici, Napoli 80055, Italy.
authors.forename: Gianfranco
authors.initials: G
authors.lastname: Carotenuto
authors.affiliation: SPIN Institute, National Research Council, Via Cintia, Napoli 80126, Italy.
authors.forename: Sergio De
authors.initials: SD
authors.lastname: Nicola
authors.affiliation: SPIN Institute, National Research Council, Via Cintia, Napoli 80126, Italy ; Physics Department, Università degli studi di Napoli Federico II, Via Cintia, Napoli 80126, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Ausanio
authors.affiliation: SPIN Institute, National Research Council, Via Cintia, Napoli 80126, Italy ; Physics Department, Università degli studi di Napoli Federico II, Via Cintia, Napoli 80126, Italy.
authors.forename: Davide
authors.initials: D
authors.lastname: Massarotti
authors.affiliation: Physics Department, Università degli studi di Napoli Federico II, Via Cintia, Napoli 80126, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Nicolais
authors.affiliation: SPIN Institute, National Research Council, Via Cintia, Napoli 80126, Italy ; Physics Department, Università degli studi di Napoli Federico II, Via Cintia, Napoli 80126, Italy.
authors.forename: Giovanni Piero
authors.initials: GP
authors.lastname: Pepe
keywords: Electrical conductor; Graphene; ITO; Polyethylene-supported graphene; Shear stress; Transparency