Electrical characterization of graphene sensors

Abstract

Graphene has shown to have great electrical, thermal and chemical properties. These qualities are suitable for construction of a chemical sensor with graphene as its sensing material. These graphene-based sensors are currently in the field of research and they are not yet viable for mass commercial application. Studies in graphene-based sensors span its very high sensitivity, selectivity, functionalization, manufacturability, stability and material configuration. We focus on the noise characterization in pristine graphene sensors, with different active channel size and layout of the electrodes. The topic of sensor characterization is difficult. Very often researchers omit the measurement setup and information about sample preparation. This article is focused on design of a sample, that is suitable for various graphene sensor experiments. We have come up with a successful design of highly configurable sample board with mounted graphene sensor, that are easy to work with. These samples are to be used for noise analysis of a graphene sensor, that is put in different gas environments.