Effect of the confined LO-phonons on the binding energy of the hydrogenic impurity in a CdSe quantum dot

The effect of the confined LO-phonon on the impurity binding energy in a Cd Se quantum dot has been calculated by using a variational approach. The cha rge carrier (electron and ion)-phonon coupling is treated within the adiaba tic approximation. The results show that this effect decreases as the dot s ize increases and depends on the impurity position. The confined LO-phonon effect decreases as the impurity is displaced from the center to the dot bo undary.