Modification in electronic, structural, and magnetic properties based on composition of composites Copper (II) Oxide (CuO) and Carbonaceous material

Modification in electronic properties of composite copper (II) oxide (CuO) and activated carbon (AC) were obtained by using x-ray photoelectron spectroscopy (XPS), reflection electron energy loss spectroscopy (REELS), and Fourier transforms infrared spectroscopy (FTIR), structural properties by x-ray diffraction (XRD), and for magnetic properties by vibrating sample magnetometer (VSM). The bandgap values of composite are 2.1 eV, 2.4 eV, 2.8 eV, and 3.1 eV for 10% AC, 15% AC, 20% AC, and 25% AC, respectively. XPS results showed that the pore of AC effectively increase the stable bonding due to the present strong bonding of O–C–Cu_1−x–O in the composites which is effectively for increasing efficiency in devices applications. It should be leading to significant modification in the electronic and the structural properties of composites CuO–AC by increasing the amount of AC as organic linker in the composites. The pore and the concentration of AC as organic linker play an important role in the increasing magnetic and the reflection loss properties which is high stability for absorber applications. (paper)