Isoperiodical heterostructures GaInAsSb/GaSb grown by LPE from Sb-rich melts in spinodal decomposition area

Abstract Ga 1−x In x As y Sb 1−y layers lattice-matched to GaSb were grown by LPE from Sb-rich melts with compositions up to x =0.4 inside the spinodal decomposition area. Crystal and optical properties of solid solutions were studied using double-crystal X-ray diffraction (DCXRD), photoluminescene (PL). The main conditions which provide epitaxial growth of stable solid solutions in spinodal decomposition area were clarified. It was found that the properties of epitaxial layers depended on the value and the type of deformation during the growth as well as the layer thickness.