Exciton in quantum tube with hexagon cross

It is established the theory of exciton spectrum in semiconductor quantum nanotube with hexagon cross in the framework of the effective mass approximation and rectangular potentials model. The electron-hole interaction is taken into account within Bethe method together with the approximating potential providing the bound state of
exciton at its internal movement along the axial axis of nanosystem. The dependences of exciton energy on the geometrical parameters of quantum nanotube are analyzed.