Influence of growth condition and radiation on infrared exciton reflection spectrum of black zinc diphosphide

For the first time the effect of ionizing particles of different type and of condition of growth from gaseous phase upon exciton spectra of black zinc diphosphide has been studied. It was shown that the defects of phosphorus sublattice which are the principal centers of optical activity in the IR, are responsible for structural evolution of black zinc diphosphide crystals in the process of their growth and interaction with radiation of different types.