Abstract
Cathodic electrodeposition of ZnSe is studied in aqueous acidic selenite (Se(IV)O2) baths of free Zn2+ ions and alkaline selenosulfite (Se0SO32−) baths of zinc complex ions. The synthesis of polycrystalline, cubic ZnSe by Se(IV)-diffusion-controlled electrodeposition from acidic solutions is optimized in terms of selenite concentration, while the effect of Ti, Ni, anodized Ti and CdSe substrates on the obtained layers’ growth and structural properties is investigated. Furthermore, the production of stoichiometric though amorphous ZnSe is demonstrated using selenosulfite solutions. The results are valuated by means of X-ray diffraction, scanning electron microscopy and reflectance spectroscopy techniques.
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