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In this research study structural and optical function to change the fish nm properties (250,300,350,375,450) nm and the degree of annealing temperature (4250C) at a fixed time of one hour for all membranes CdO precipitated the rules of the glass at room temperature and the rate of deposition rate of (10 ± 2nm s-1) using evaporation vacuum technique and results showed ray diffraction Alcinh and that all thin film CdO prepared a multi-gelling installation and cube type (Fcc) and the mainstream is (111) to extract the values of absorbance and the reflectivity of all membranes CdO prepared for the extent of wavelengths have been studying properties of the visual (400-1100nm) The more fish, the degree of annealing within the visible regions of the infrared region were energy gap for electronic transfers account was optical energy gap within the range (2.22-2.25 eV) and the absorption coefficient has a high value figures were( Cm-1 105) for all membranes prepared were studied dielectric constant and the calculation electric and real fantasy Bhziah optical constants (absorption coefficient, lethargy coefficient, refractive index) was to fish less effect on membranes prepared from annealing because the degrees of annealing, especially temperature (4250 C) led to reduce defects structure and increase in the crystal system of thin film (CdO) prepared

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The fabricated Photodetector n-CdO /-Si factory thin films Altboukaraharara spatial silicon multi- crystallization of the type (n-Type) the deposition of a thin film of cadmium and at room temperature (300K) and thickness (300 ± 20nm) and the time of deposition (1.25sec) was antioxidant thin films cadmium (Cd) record temperature (673k) for one hour to the presence of air and calculated energy gap optical transitions electronic direct ( allowed ) a function of the absorption coefficient and permeability and reflectivity by recording the spectrum absorbance and permeability of the membrane record within the wavelengths (300 -1100nm). was used severalthe bias ranged between 1-5 Volts. The results showed that this reagent works to the extent spectral 400-1000 nm current revealed these findings also said that factor ideal growing thin films CdO which gives a clear indication of the increased concentration of defects.It Showed the results of measuring volume - an effort that the detector of the type of acute if the value of effort internal construction less CdO of thin films . The studies of the response spectrum showed that these reagents responsiveness characterized Bakmtin : the first at the wavelength of 600 nm and the second at the wavelength 800 nm. The highest value for the responsiveness 0.46 A / W at 800 nm wavelength and using siding

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