Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 36, Pages 14320-14326Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja202371h
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Funding
- FP6-Research Infrastructures (ART) program [026029]
- European Science Foundation (ESF)
- EC [PITN-GA-2010-264694, PITN-GA-2009-238177, MRTN-CT-2006-036040, 212311]
- NanoSci-E+ project SENSORS
- International Center for Frontier Research in Chemistry (FRC, Strasbourg)
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Here, we describe a simple approach to fabricate graphene-based field-effect-transistors (FETs), starting from aqueous solutions of graphene-oxide (GO), processed entirely under ambient conditions. The process relies on the site-selective reduction of GO sheets deposited in between or on the surface of micro/nanoelectrodes. The same electrodes are first used for voltage-induced electrochemical GO reduction, and then as the source and drain contacts of FETs, allowing for the straightforward production and characterization of ambipolar graphene devices. With the use of nanoelectrodes, we could reduce different selected areas belonging to one single sheet as well.
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