▎ 摘　　要

The electronic states of a "quantum dot-graphene monolayer-SiO2 + n (+)-Si substrate" system in an external magnetic field are studied. An analytical expression for charge transfer in this system is obtained. The electronic states of a "quantum dot-graphene bilayer-SiO2 + n (+)-Si substrate" system are considered. The systems under study are interesting from the viewpoint of controlling the optical properties of a quantum dot by means of an applied electric field.