Structure and photoelectric properties of Pb1-xMnxSe epitaxial films

The features of growth, structure and photoelectric properties of Pb1-xMnxSe (x=0.02÷0.04) epitaxial films grown by the molecular beams condensation method in vacuum 10 -4 Pa on BaF 2 (111) substrate have been investigated. It is shown that received films possess high photosensitivity at 77 K temperature and their spectral characteristics vary by change of x. Shift of the maximum of spectral photosensitivity to shorter wavelengths with growth of x is explained by the increase in width of the forbidden band of Pb l-x Mn x Se solid solutions with increase of manganese content.