Energy spectrum and optical characteristics for quantum dot - impurity center complex

Within the framework of a zero-range potential model in the approach of the effective mass the light impurity absorption quantum dots with the spherical symmetric potential profile is considered. The formation dynamics of a localized D--state has been described, which is conditioned by the state superposition of quantum dots with different values of the orbital quantum number. Numerical evaluation of D--state binding energy and those of the light impurity absorption coefficient are given for the case of a heterophase system -. A study has been made of the sensitivity of the edge of the impurity absorption band to the impurity level depth as well as to the value of quantum dot mean radius