Figure 3

SEM images of TNAs at two latest stages of their fabrication process: (a) annealing, (b) annealing (cross-section), (c) dimpled film without nanotubes. (d) TEM image of removed nanotubes.

SEM images of TNAs at two latest stages of their fabrication process: (a) annealing, (b) annealing (cross-section), (c) dimpled film without nanotubes. (d) TEM image of removed nanotubes.