Spontaneous Growth of Superstructure α‐Fe2O3 Nanowire and Nanobelt Arrays in Reactive Oxygen Plasma

Direct plasma oxidation of iron substrates results in the nucleation and growth of α-Fe2O3 nanowire and nanobelt arrays (see image). The initial plasma heating in the early stages determines the nucleation density, and the growth of nanowires and nanobelts is a function of the temperature-dependent diffusion of iron atoms and the plasma radical flux on the surface.