Search

This study used pulsed laser deposition (PLD) to create nano-films of cadmium oxide (CdO) that were deposited at various substrate temperatures of 200, 300, and 400 °C, to reach the optimum substrate temperature for deposited films. The pulsed laser system with a 1064nm wavelength, pulse duration of 10 ns, and pulsed energy of 1800 mJ energy has been applied on the CdO target for ablation of the CdO nano-grains on a substrate of the quartz. The transmittance results of the deposited nano-films provide high transparency reach to 86%, which decreases as the substrate's temperature increases, as well as the absorption results, which decrease as the temperatures of the substrate increase. Finally, the optical energy gap for the deposited films at various substrate temperatures ranged from 2.08 to 2.85eV, as the temperatures of the substrate increased. These results give an indication that the deposited films can be used in optoelectronics devices. [ABSTRACT FROM AUTHOR]

In order to create CdO TCO's films, a pulsed laser (Nd: YAG) was utilized to ablate the target of CdO in the active environment with low oxygen pressure. The optimal substrate temperature was reached in this work by using pulsed laser deposition (PLD) to build cadmium oxide (CdO) nano-films at different substrate temperatures of 200, 300, and 400oC. The CdO target was exposed to a pulsed laser with energy of 1800 mJ at a standard wavelength of 1064 nm, pulse duration of 10 ns, and ablating CdO nano-grains on quartz substrates. The XRD result shows three main planes (111), (200), and (220), and also shows increase in the intensity of the peak for the plane of (111) at the space of the atomic of 2.744Å, where the XRD results shows, an increased in the crystallization with the increased the substrate temperatures. The morphological images show the best preparation condition at 300oC that are the average grain size of roughly 82.4 nm, and surface roughness accumulated to around 1.14 nm. The morphological and structural characteristics of the prepared nano-films are tested and examined at various substrate temperatures. The findings showed that the substrate temperatures were associated with a greater crystenality. [ABSTRACT FROM AUTHOR]