Fabrication of (Al2O3/CdO) metal and ceramic matrix composites reinforced CMC via laser ablation for optoelectronic applications‏

Abstract

Aluminum oxide and cadmium oxide nanoparticles have been reinforced with carboxymethyl cellulose (CMC) nanoparticles using a laser ablation route. The effect of changing the content of cadmium oxide (2.0, 4.0, 6.0 wt % of CdO NPs) on the electrical conductivity properties has been evaluated. The synthesized films have been investigated via various techniques. The presence of a broad peak at 2θ = 23.23° in the X-ray diffraction pattern of the CMC sample indicates its semi-crystalline nature as a pure polymer. The strong ion interactions and arrangement of big ion clusters that produced a significant quantity of ion clusters may have caused the Al2O3/CdO peaks to rise again. FTIR spectra of the polymer nanocomposites obtained the interactions between the Al2O3/CdO -NPs and pure CMC. The energy gap values reduces from 5.35 eV to 3.14 eV in direct transition by increasing the content of cadmium oxide nanoparticles. The TGA values show that the thermal stability of the materials enhanced with the incorporation of Al2O3/CdO nanoparticles, as evidenced by an increase in residual weight from 11% to 48%. The ionic conductivity of the composite films CMC- Al2O3/CdO NPs was notably boosted by the inclusion of Al2O3/CdO nanoparticles, where the final samples (CAlCdO3 NPs) had σdc = 2.08 10−7 Scm−1. Dielectric results found that as Al2O3/CdO NP concentrations increase, the dielectric constant and dielectric loss increase as well. Arc length in CMC/Al2O3 reduces as cadmium oxide content rises, indicating enhanced conductivity. The fabricated nano-composite film could be suggested for optoelectronic applications.