At the Tallinn Digital Summit, the Graphene Flagship showcased the potential of graphene and related materials to heads of state and government from across Europe with an array of interactive demonstrators and prototypes.   In the Graphene Flagship exhibition area, there was an “electronic nose” capable of distinguishing different gases, a graphene-based chromatic eye that uses different graphene photodetectors in an array for broadband optical sensing, and a flexible, graphene based terahertz...