Cd_(0.5)Zn_(0.5)Se wide range composite thin films for solar cell buffer layer application

摘要

Cd_(0.5)Zn_(0.5)Se composite thin films were obtained on glass substrate using aqueous alkaline solution at low temperature using cadmium acetate and zinc acetate as Cd~(2+) and Zn~(2+) and Se~(2-) ion sources. Different phases of individuals i.e. CdSe and ZnSe, spherical and needle shape surface morphology and good elemental chemical stoichiometric ratio were observed from X-ray diffraction, scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) studies, respectively. The band gap and electrical resistivity of the composite film were 2.35 eV and about 10~7 Ω cm, respectively.