Researchers develop graphene films with record strength using folded flake structure
Scientists created macroscopic graphene oxide films by assembling surface-folded, multilayer graphene oxide flakes into a 'fold-clasping lamellar structure.' The resulting films achieved 2.9 GPa strength, 84.5 MJ/m³ toughness, and 5% elastic strain, combining properties that are typically difficult to achieve together in 2D material films.