EFFECTS OF DIELECTRIC CONFINEMENT ON EXCITIONIC STATES IN CdSe QUANTUM DOT
介电受限对CdSe量子点中受限激子的影响

According to the relationship of Wang and Zunger between the declectric constants and the radius of a CdSe quantum dot (QD),we use the variational method to calculate the binding energy and ground state energy of an exciton in the QD.Compared with the previouse calculations,the present result shows that the binding energy increases while its ground state energy becomes lower and it is close to the experimental value.