Binding Energy of the Donor–Confined LO Phonon System in Quantum Well Wire Structures

We have calculated the effects of the electron–confined LO phonon interactions on the ground bound state of a shallow donor impurity located on the axis of the quantum well wire (QWW) as a function of the size of the QWW. The results indicate that the effect of electron–confined LO phonon coupling on the binding energy increases as the confinement length increases and this effect is much more pronounced than that in quasi-two-dimensional quantum well structures.