Figure 1.

Multiscale hierarchical structure of carbon fiber with Carbon Nanotubes (CNTs). (A) is a representative image of fiber cloth without a CNT coating. (B) is a representative image showing details of the vertical CNT carpet growth. This image was obtained using a flat graphite surface, where the substrate–CNT interface is visible using a scanning electron microscope (SEM). (C,E,G) are representative scaffold images of carbon fiber cloth with 20 min CNT-coating, and D, F, and H are representative images of the same material with 120 min CNT-coating. Representative scale bars: (A,C,D) = 50 μm; (B) = 2 μm, (E,F) = 20 μm, (G,H) = 5 μm. The images shown are representative images from three independent samples.