Fig. 6

The 2D maps of the relationship between Zin and Z0 of the samples. a the as-obtained multilayer graphene, b ball milled multilayer graphene, c MG/h-BNNP-10%, d MG/h-BNNP-20%, e MG/h-BNNP-30%, and f MG/h-BNNP-40% based absorbers

The 2D maps of the relationship between Zin and Z0 of the samples. a the as-obtained multilayer graphene, b ball milled multilayer graphene, c MG/h-BNNP-10%, d MG/h-BNNP-20%, e MG/h-BNNP-30%, and f MG/h-BNNP-40% based absorbers