ABSTRACT
This chapter is devoted to the study of the emission properties of two-dimensional films of pillared-graphene-doped potassium. Carbon nanotubes (CNTs) and graphene have unique mechanical, electronic, thermal, and emission properties. Intercalation of a monolayer film of pillared graphene by potassium atoms led to a significant decrease in the Fermi energy and, accordingly, the work function of composite. Graphs of the density of electronic states for pillared graphene bilayer films with different lengths of CNTs are similar; they are topologically identical. The emission characteristics of monolayer, and three-dimensional pillared graphene are studied depending on the length of CNTs, as well as the mass fraction of potassium atoms in the pores and cavities of the composite. The behavior of the density of electronic states is ambiguous in the case of monolayer pillared graphene films, in which a decrease in this value is observed near the Fermi level for composites with two smallest CNTs and an increase for the remaining structures in question.
