Electromagnetic shielding effectiveness of lightweight and flexible ultrathin shungite plates

Carbon-containing shielding materials, especially with absorbing properties, received a lot of attention from the scientific community as having flexibility, lightness and corrosion resistance. Reducing the thickness of such materials (usually a few millimetres) is also an urgent task. In this paper, we offered results of studying the reflective and absorbing properties of shielding materials from natural graphene-containing shungite