*3.2.5 Aromatic compounds*

Aromatic compounds require a lower growth temperature, and graphene growth using benzene at around 300°C has been reported by Jang and coworkers [43]. Processes of dehydrogenation and possible denitrogenation and deoxygenation of the aromatic species take place at lower temperatures. Active aromatic ring species are deposited on the substrate forming graphene growth nuclei and capture the active carbon species for island growth. The low energy needed is related to the basic structure of aromatic compounds, which is analogous to the hexagonal honeycomb packaging of graphene [15].
