Fabrication and characterization of conductive ink for flexible electronic applications
Loading...
Date
2016-06
Authors
Azlina Azman Cheah
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
A printable conducting ink with several conventional materials, such as metals and conductive polymers have been widely studied. The purpose of this work is to formulate a graphene-based conductive ink with different type of conducting polymer. Besides, wetting properties and adhesion of graphene/ conductive polymer ink on different types of flexible substrate are studied. The application of graphene conductive ink on different type of flexible substrates using brush painting and inkjet printing techniques is also investigated. Graphene are mixed into a solvent with conducting polymer to create a fluid ink. The solvent should be capable of forming a stable dispersion of graphene in the presence of conducting polymer. Once the conductive inks are applied on flexible substrate, the inks are dried and cured to form adherent conductive materials on the substrate. Based on this experimental study, it is found that the adhesion of graphene/ conductive ink on PEN substrate is better than that of PET substrate. Graphene/PEDOT:PSS printed on PEN substrate with 10 printing cycles has the highest electrical conductivity which is 3661.66 S/cm. Graphene conductive inks on different type of flexible substrates are more effective in inkjet printing compared to brush painting technique.