Growth Mechanism of a Hybrid Structure Consisting of a Graphite Layer on Top of Vertical Carbon Nanotubes
Figure 8
(a) CNT grown from a 1.9 nm Co film and (b) from a 2.2 nm Ni film after 2 minute thermal pretreatment (same scale). For both, thermal pretreatment of 2′10 s in vacuum (°C) and growth step in 5/10/495 sccm C2H2/He/Ar at 4.148 Torr for 5 min (°C); (c) top layer visible on top of patterned structures with 1.3 nm Ni deposited. No pretreatment was used in this case. Details on the patterned structures of c are in [26, 27].
