POLARON EFFECTS ON THE STARK SHIFT OF A BOUND POLARON IN FINITE QUANTUM-WELLS

With both LO and SO modes being taken into account, the influence of e lectron-phonon interaction on QCSE of a bound polaron in a finite quan tum well (QW) is investigated by means of the perturbation-variation m ethod. It is found that the presence of an ionized impurity decreases the energy shift and weakens the effect of a finite barrier height. LO and SO mode effects will give significant corrections to the Stark en ergy shift individually and their influences on the shift just are con trary.