Figure 2: Curved CNT micropillars.
From: Strain-engineered manufacturing of freeform carbon nanotube microstructures
The micropillars are grown from catalyst rectangles partially overlapping TiN (shown as green layer in the schematics, see inset) and bend towards the TiN side, which grows more slowly and couples to the faster-growing region of catalyst directly on SiO2. (a) Closely spaced short structures with ~45° takeoff angle. Scale bar, 100 μm (panel) and 20 μm (inset). (b) Arch-like structures that curve over and contact the substrate at their distal ends. Scale bar, 200 μm (panel) and 20 μm (inset).
