INVESTIGATION OF OPTICAL AND STRUCTURAL PROPERTIES OF CDO AND CDO: CU PREPARED BY LASER-INDUCED PLASMA
In this research, thin films of cadmium oxide (CdO) and cadmium oxide doped with pure copper (CdO: Cu) attracted a lot of attention due to their applications in electronic and optical devices. Thin films were adopted in this work that were deposited on substrates made of glass using laser-induced plasma technology at (1064nm, 6x10-2mbr, and 6 Hz ) in vacuum conditions, where the plasma formed as a result of the pulsed laser is used to transfer and deposition the film on the glass substrates, then the prepared films are annealed at a temperature of 500 degrees Celsius. The purity of the material was confirmed by taking the crystal structure of X-ray diffraction. The optical properties of the thin films of cadmium oxide (CdO) and cadmium oxide doped with copper (CdO: Cu) were analyzed by drawing the relationship between (αhυ)1/2 against the two-photon energy curves and found that the energy gap is 2.5. eV for the cadmium oxide CdO film, and you noticed that the energy gap decreases when the pulse increases, but in the case of tarnishing with copper, the energy gap decreased from 2.5 eV to 2.4 eV, and it suffers from a greater decrease when the pulse increases.
Keywords: Laser-Induced Plasma, Plasma, Pulse Energy, Cadmium Oxide, Optical Properties.