Formation and characterization of CdSe thin films on Ni substrate

Preparation and characterization of CdSe thin film semiconductors, prepared by cathodic electrodeposition from an acid sulfate solution (CdSO
₄
- SeO
₂
), were investigated. The effect of the bath temperature and how it affects the CdSe deposits was studied. The formation of compact barrier layers of zinc blende CdSe was attained. X-ray diffraction (XRD) and scanning electron microscopy (SEM) tests present a remarkably intense cubic structure, without any post-thermal treatment. The Ni/CdSe/Au structure may exhibit rectifying properties depending on the temperature during the electrodeposition. High temperature baths make the deposits to obtain ohmic properties.