Polarization energiesW(z) induced by charged particles moving perpendicular to the vacuum‐semiconductor interfaces have been calculated on the basis of the perturbation theory. The adopted approach takes into account both spatial and temporal dispersions of the electrode dielectric functions &Vegr;(k, &ohgr;). It is shown that the quantum‐mechanical character of thek‐dependence of &Vegr;(k, &ohgr;) leads to the smootherW(z) dependence than in the semiclassical case and to the drastic reduction of the dynamical corrections to the static image forces. © 2003 American Institute of Physics