  We calculated the binding energy of a polaron bound to a hydrogenic donor
impurity located in a spherical quantum dot by means of a variational and
numerical technique for finite potential models. The polaronic effect has been
considered taking into account the ion-phonon coupling under the Lee Low Pines
approach. The results show that the binding energies are drastically affected
by the dot radius, the potential barrier height and the polaronic effects.

Other Condensed Matter;Materials Science