title: Bottom-up realization and electrical characterization of a graphene-based device.
abstract: We propose a bottom-up procedure to fabricate an easy-to-engineer graphene-based device, consisting of a microstrip-like circuit where few-layer graphene nanoplatelets are used to contact two copper electrodes. The graphene nanoplatelets are obtained by the microwave irradiation of intercalated graphite, i.e., an environmentally friendly, fast and low-cost procedure. The contact is created by a bottom-up process, driven by the application of a DC electrical field in the gap between the electrodes, yielding the formation of a graphene carpet. The electrical resistance of the device has been measured as a function of the gap length and device temperature. The possible use of this device as a gas sensor is demonstrated by measuring the sensitivity of its electrical resistance to the presence of gas. The measured results demonstrate a good degree of reproducibility in the fabrication process, and the competitive performance of devices, thus making the proposed technique potentially attractive for industrial applications.
authors: DIEI, University of Cassino and Southern Lazio, Via G. di Biasio 43, 03043, Cassino, Italy. INFN, National Institute of Nuclear Physics, via E. Fermi 40, 00044 Frascati, Italy.
authors: A
authors: A
authors: Maffucci
authors: F
authors: F
authors: Micciulla
authors: A
authors: A
authors: Cataldo
authors: G
authors: G
authors: Miano
authors: S
authors: S
authors: Bellucci