PERMANENT ELECTRIC DIPOLE MOMENT EFFECT ON THE ELECTRONIC STATES IN CdSe/ZnS CORE-SHELL QUANTUM DOTS UNDER ELECTRIC FIELD

The effect of the permanent electric dipole moment on the electron energy states in a CdSe/ZnS quantum structure under applied electric field was studied. Single particle Schrodinger equation was solved in the effective mass approximation by using the finite element method. We found that the CdSe/ZnS related energy states are differently influenced by the relative orientation between the electric field and electric dipole moment. If the two vectors are parallel, the energy level variation is significant. These allow tuning the characteristics and properties of optoelectronic systems. It is shown that the applied electric field and the permanent electric dipole moment decrease the quantum degeneracy degree.