The Preparation and Studying The Electronic Transition for Cadmium Oxide Thin Film dopped with Magnesium


The aim of the research is studying the effect of doping with magnesium with ratios (1,3,5 and 7 %) on the structure and on the electronic transitions in the CdO thin films with thickness 150 nm, which are prepared by Chemical deposition method on glass substrates heated to 400 oC. The prepared films were examined by X-Ray diffraction technique , which showed that all prepared films are polycrystalline . The absorption cofficient , and the direct energy gap were calculated . It has been found that the absorption cofficient increaseas the percentage of dopants increases, and the optical energy gap decreases as the percentage of dopantsincreases.


Thin films, CdO