Investigation of Field Emission Properties of Multi-Emitter Carbon Nanotube Cathodes

Currently, scientists are actively studying the properties of cathodes based on various carbon materials, including carbon nanotubes. The purpose of this work is the possibility of using multi-emitter carbon nanotube cathodes for the development of field cathodes. A study was made of the field emission properties of multi-emitter cathodes based on filaments of multi-walled carbon nanotubes. For the experiments, a structure was assembled from a plurality of cathodes placed on a common base. As a result, the hypothesis of additivity of currents at low voltage was confirmed.