... powder, purity > 99%, completely single-layer, ply 0.7-1.2 nm, sizes are hundreds of nm - several µm, excellent ... Graphene oxide solution;Features: concentration 2mg/ml, thickness 0.7-1.2 nm, sizes are hundreds of nm - several apms m. ... manufacturing various electronic, photoelectric device FGraphene—070( 2-4 layers)Name: Few layers of Graphene (2-4 layers), Features: solid powder, Purity>99%, ...