Rapid development of wireless communications, distributed sensor arrays, and portable electronic devices have made the control of electromagnetic (EM) radiation and the reduction of EM pollution crucially important. Electromagnetic interference (EMI) shielding is needed to ensure that electronics operate reliably and without detrimental effects on human health.
Prof. Alexander Balandin, Dr. Fariborz Kargar and colleagues from the University of California, Riverside have developed novel composites with fillers comprised of graphene and/or quasi-1D van der Waals materials that provide efficient EMI shielding. These unique composites can block EM radiation and are also electrically insulating. These composites may be added to adhesives used in the packaging of electronic components so that the resulting electronic devices will have EMI shielding properties. This technology ensures that EMI shielding is achieved so that a variety of electronics operate reliably and without detrimental effects on human health.
Fig 1: Coefficients of absorption for composites made with the UCR graphene-based composition.