In this work, we present the influence of heat treatments with CdCl₂ prepared with ethanol on the characteristics of CdS/CdTe thin films. CdTe thin films were grown by using the closed space sublimation technique combined with substrate rotation (CSSSR) on CdS/ITO substrates. CdS film was previously deposited by chemical bath deposition (CBD) without stirring. The X-ray diffraction was used to identify the crystal structure and found that the films exhibit a cubic crystal structure with a spatial orientation (111), a grain growth with a uniform compacting. Also, a heat treatment in a muffle furnace at 450°C for a period of 30min was done.

CdTe, semiconductor, close space sublimation, CSSSR.