Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-06-04
ACS Nano, 2009, 3(7), 1729 - 1734.
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
ACS Nano, (2009) In Press
Scientific paper
10.1021/nn900288d
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 shown to be 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 ultra-large-scale integration densities, thereby enabling the rapid screening of a large number of devices.
Bonetti Alessandro
Dehm Simone
Ferrari Andrea Carlo
Krupke Ralph
Lombardo Antonio
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