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Published September 1, 2015 | metadata_only
Journal Article

Graphene field effect devices operating in differential circuit configuration


We study the concept of a basic building block for circuits using differential signaling and being based on graphene field effect devices. We fabricated a number of top-gated graphene FETs using commercially available graphene and employing electron beam lithography along with other semiconductor manufacturing processes. These devices were then systematically measured in an automated setup and their DC characteristics analyzed in terms of a simple but effective analytical model. This model together with the collected data allowed us to proceed further with both mathematical analysis of circuit characteristics as well as numerical simulation in a dedicated circuit analysis software.

Additional Information

© 2015 Elsevier B.V. Received 24 October 2014; Received in revised form 6 February 2015; Accepted 9 March 2015; Available online 28 March 2015. We thankfully acknowledge the help of Derrick Chi (Caltech) for EBL and Nick Strandwitz (also Caltech) for ALD. Fabrication was carried out at the Kavli Nanoscience Institute, Caltech. Measurements were performed in the CARPLAT facility at EPFL with kind support of Wladek Grabinsky. This work was financed by SNSF Electron Fluidics: Graphene Y-Branch Differential Logic Project, Grant Number 135046.

Additional details

August 22, 2023
August 22, 2023