Phonon frequencies, dielectric constants and polaron properties in CdxZn1-xS ternary semiconductor alloying

First-principles pseudo-potential computations established on the density functional perturbation theory have been utilized for calculating frequencies of optical phonons, high-frequency and static dielectric constants, Frӧhlich coupling parameter, Debye temperature of longitudinal phonon frequency and effective polar field for zinc-blende CdxZn1-xS semiconductor ternary alloys. The frequencies of these phonons, and hence the dielectric constants, are found to be composition dependent. The higher the dielectric constant is, the better a material functions as an insulator. The large dielectric constant in CdxZn1-xS is mainly due to a pseudo-potential of low frequency phonons with large mode effective charge. The predisposition of experimental consequences display shapely convention with our datum. Otherwise, our consequences are predictions. The compositional dependence of the features of interest display at all events non-monotonic behavior. The survey may be beneficial for the distinguishing permission of CdZnS-stabilized quantum well apparatus.