초록 close

We present the optical properties of zinc-blende CdSe and ZnSe films, which have been determined by using vacuum ultra-violet spectroscopic ellipsometry (SE) whose spectral range is from 0.7 to 9.0 eV at room temperature. We observed new critical point energies, whose observation by SE has not been reported so far, in the spectral range above 6 eV. We interpret these new peaks as a previously reported transition from a band-structure calculation. The values of the critical point energies were determined from numerically calculated second energy derivatives of these data.


We present the optical properties of zinc-blende CdSe and ZnSe films, which have been determined by using vacuum ultra-violet spectroscopic ellipsometry (SE) whose spectral range is from 0.7 to 9.0 eV at room temperature. We observed new critical point energies, whose observation by SE has not been reported so far, in the spectral range above 6 eV. We interpret these new peaks as a previously reported transition from a band-structure calculation. The values of the critical point energies were determined from numerically calculated second energy derivatives of these data.