Extended Data Fig. 3: Characterizations of AMC′ samples with 1,8-dibromonaphthalene as the precursors.
From: Disorder-tuned conductivity in amorphous monolayer carbon

a, Optical images of AMC′ samples transferred onto SiO2/Si substrates. No AMC′ sample was obtained at 300 °C or 325 °C. Continuous and uniform AMC’ films were obtained at intermediate temperatures and samples with the continuous first layer and the partially covered second layer were obtained when T ≥ 600 °C. b, Raman spectra of AMC′ samples, showing the complete absence of G′ peaks. c, I–V curves of two-terminal AMC′ devices, showing varied conductivities for AMC′ samples. d, Diagram of Rs as a function of growth temperature, naturally exhibiting three zones. Scale bar, 200 μm (a).