[citation needed] Cathodic arc sources are used particularly for carbon ion deposition.
Molecular ion beam deposition employs electrospray ionization or MALDI sources.
[3] The ions are then accelerated, focused or deflected using high voltages or magnetic fields.
In IBD they are used to select a single, or a range of ion species for deposition in order to avoid contamination.
[8] These limitations make ion beam sputtering less efficient for large-scale applications.