Local current–voltage estimation and characteristization based on field emission image processing of large-area field emitters

Local emission characteristics of microscopic emission sites on the surface of large-area field emitters are among the most important factors influencing macroscopic emission properties. This work aimed to evaluate the local field emission characteristics using a computerized field emission projector and a technique involving multichannel recording of current–voltage characteristics. The model field emitter consisted of nanocomposite multiwall carbon nanotubes in a polymer matrix.