Figure 1
From: Antibacterial activity of large-area monolayer graphene film manipulated by charge transfer
(a and c) XPS depth profiles of carbon distribution in Cu (a) and Ge (c) substrates after the growth of graphene films, accompanied by the corresponding XPS full spectra of graphene film-coated Cu (b) and Ge (d) surfaces. The insets in (b) and (d) are the corresponding C1s XPS spectra of graphene films on Cu and Ge; (e and f) TEM images and the inserted SAED patterns of the transferred graphene films from Cu (e) and Ge (f) substrates, respectively. The right insets in (e) and (f) are the corresponding HRTEM images of monolayer graphene edge that show one carbon layer, with a scale bar of 3 nm.
