A clever way of protecting graphene

One thing that has become clear in the last decade of graphene research is that it is necessary to protect the surface of graphene from external contaminants, to preserve its exceptional electronic properties and be able to exploit them into novel devices. The depositions of dielectric materials on top of graphene is therefore an essential step of manufacturing graphene-based electronic and photonic devices. [read more »]

Combining high responsivity and low power consumption in graphene-based photodetectors

Researchers from AMO GmbH, ICFO- Institut de Ciencies Fotoniques, RWTH Aachen University, and Bergishe Universität Wuppertal have developed a novel approach for graphene-based photodetectors that allows combining high responsivity and low power consumption, thus circumventing one of the major limitations of state-of-the-art photodetectors based on graphene – namely the high power-consumption caused by their large dark currents. [read more »]