title: Dielectrophoretic assembly of high-density arrays of individual graphene devices for rapid screening.
abstract: We establish the use of dielectrophoresis for the directed parallel assembly of individual flakes and nanoribbons of few-layer graphene into electronic devices. This is a bottom-up approach where source and drain electrodes are prefabricated and the flakes are deposited from a solution using an alternating electric field applied between the electrodes. These devices are characterized by scanning electron microscopy, atomic force microscopy, Raman spectroscopy, and electron transport measurements. They are electrically active and their current carrying capacity and subsequent failure mechanism is revealed. Akin to carbon nanotubes, we show that the dielectrophoretic deposition is self-limiting to one flake per device and is scalable to ultralarge-scale integration densities, thereby enabling the rapid screening of a large number of devices.
authors.affiliation: Institut für Nanotechnologie, Forschungszentrum Karlsruhe, 76021 Karlsruhe, Germany.
authors.forename: Aravind
authors.initials: A
authors.lastname: Vijayaraghavan
authors.forename: Calogero
authors.initials: C
authors.lastname: Sciascia
authors.forename: Simone
authors.initials: S
authors.lastname: Dehm
authors.forename: Antonio
authors.initials: A
authors.lastname: Lombardo
authors.forename: Alessandro
authors.initials: A
authors.lastname: Bonetti
authors.forename: Andrea C
authors.initials: AC
authors.lastname: Ferrari
authors.forename: Ralph
authors.initials: R
authors.lastname: Krupke