fig7

Figure 7. (A) Schematic illustration of the preparation and hydrazine-treatment process of the PEDOT:PSS/graphene composite films; (B) Photographs of dispersion of PEDOT:PSS, graphene, and PEDOT:PSS/graphene in DMF after sonication; (C) Photos of PEDOT:PSS, graphene, and PEDOT:PSS/graphene films. Reproduced with permission from Ref^[58]. Copyright^© 2015. American Chemical Society. DMF: N,N-Dimethylformamide; PEDOT:PSS: poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonic acid).