Research of the morphological and structural properties of CdTe films obtained by chemical molecular beam deposition for thin film solar cells

Abstract

CdTe films of different composition were obtained by chemical molecular beam deposition (CMBD). Their morphological and structural properties before and after heat treatment were investigated. The study of pictures of a scanning electron microscope and X-ray diffraction analysis showed that CdTe films have a well-oriented polycrystalline structure with a preferred orientation (111), size of film grains of 3–5 μm, and the structure of the (grains) films is denser. This conditions the possibility of growing CdTe films of different composition suitable for the manufacture of photovoltaic devices.