Adsorption/desorption and electrically controlled flipping of ammonia molecules on graphene

Abstract

In this paper, we evaluate of the adsorption/ desorption of ammonia molecules on a graphene surface by studying the Fermi level shift. Based on a physically plausible model, the adsorption and desorption rates of ammonia molecules on graphene have been extracted from the measured Fermi level shift as a function of exposure time. An electric field-induced flipping behavior of ammonia molecules on graphene is suggested, based on field effect transistor (FET) measurements.

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Cited by in corpus (6)

• Enhancing the response of NH3 graphene-sensors by using devices with different graphene-substrate distances
• Observation of Electrically Tunable van der Waals Interaction in Graphene-Molecule Complex
• Transfer Printing of CVD Graphene FETs on Patterned Substrates
• Tuning hydrogen adsorption on graphene by gate voltage
• Chemical sensing with graphene: A quantum field theory perspective
• Device Chemistry of Graphene Transistors