Fig. 7From: Interfactant action of an amphiphilic polymer upon directing graphene oxide layer formation on sapphire substrates3.5–4 µm wide SFM images obtained after 1 h rinsing with deionized water of a a GO/sapphire adsorbate (height image), b phase image of the same region as shown in a, c a GO/G50/sapphire film (height image), and d a GO/G50/sapphire film (height image)Back to article page