Strained ZnSe nanostructures investigated by x-ray diffraction, atomic force microscopy,transmission electron microscopy and optical absorption and luminescence spectroscopy

Abstract

Nanostructured ZnSe (Q-ZnSe) films synthesized by a wet chemical route have beenstudied. The evolution of particle size dependent strain, morphology and luminescenceproperties have been investigated, using x-ray diffraction, atomic force microscopy,transmission electron microscopy and optical absorption and luminescence spectroscopy. Itis shown that the degree of structural orientation, self-organization and the nature of strainare dependent on particle size. Self-organized Q-ZnSe films with narrow particle sizedistribution have been successfully synthesized. Systematic particle size dependent blueshifts in the optical absorption edge and PL maxima have also been reported.