Implementing graphene and other materials into Cash in transit (CIT) boxes to enhance security

Abstract

Graphene was said to adhere to substrates due to strong pi-pi forces; therefore the ability to stick to polypropylene was tested. (Koenig et al., 2011) The ability of Graphene to adhere to most materials is true. However, these forces are only ultra-strong for mechanically exfoliated pristine Graphene. When Graphene is contaminated by molecules, the adhesion with the substrate is diminished. As the process of liquid exfoliated of Graphene consists of many areas of contamination, the Graphene electrodes are another part of this study. Many methods of producing Graphene electrodes are being investigated: film growth and etch, large scale conductive Graphene inks and reduction of graphene oxide. The study moved towards Silver inks as it provide far better materials specifications, for the application as a security tamper sensor for Spinnaker International. This study also goes into great depth of the electronics, which were designed to provide better sensing abilities using less power. A power consumption naturally goes up with any material other than solid copper.