Preparation and Characterization of Functional Graphene Based Dispersions for Wearable Electronics

Abstract

With the development of technology, the interest in wearable electronics has increased and graphene/its derivatives with superior electrical properties have also found a place in this field. However, during the integration of graphene into the different systems, encountering interlayer stack and agglomeration problems has led to search for new solutions.

In this study, we tried to both overcome the existing problems in graphene-based systems and obtain electrically conductive graphene dispersion. The graphene dispersion was produced by using polyvinylpyrrolidone as a stabilizer to obtain a stable dispersion and functionalized by adding silver nanoparticles to increase the electrical conductivity of dip coated samples. Structural characterizations were performed by Raman and Scanning Electron Microscopy analysis while Transmission Line Measurement was used to examine electrical properties of the samples and rheological analysis was conducted to investigate structural change with the addition of silver nanoparticles.