Nanotechnology Now Home > Press > New way to control electrical charge in 2D materials: Put a flake on it Physicists at Washington University in St. Louis have discovered how to locally add electrical charge to an atomically thin graphene device by layering flakes of another thin material, alpha-RuCl3, on top of it. Here, a layered device transfers electric charge. CREDIT (Image courtesy Nano Letters) Abstract: Physicists at Washington University in St. Louis have discovered how to locally add electrical charge to an atomically thin graphene device by layering flakes of another thin material, alpha-RuCl3, on top of it. New way to control electrical charge in 2D materials: Put a flake on it