Large volumes of highly purified dispersions of monochiral (6,5) single-walled carbon nanotubes are readily available through polymer-wrapping and shear-force mixing. They enable the deposition (e.g. by aerosol jet printing or filtration) of semiconducting layers of variable thickness from sparse networks to 300 nm thick films with large optical density. These layers can be applied in lateral and vertical field-effect transistors with excellent device performance but also as electrochromic notch filters or for organic light-emitting diodes in the near-infrared. Here, we present examples of such applications and investigate the impact of novel n-dopants on nanotube networks, temperature-dependent charge transport within monochiral and mixed layers and their optical properties at different charge carrier densities.