Bimetallic impact on the energy band gap of the polymers PS, PMMA, and PVA nanocomposites

Polymers/Al + Ag, Al + ZnO, and Ag + ZnO nanocomposites will receive much attention in their optical characterization due to their wide range of applications in optical devices. So, it is imperative to enhance their optical capabilities. This work uses the casting method to create flexible foil from nanocomposites made of three different polymer types: Al + Ag, Al + ZnO, and Ag + ZnO nanoparticles. Al + Ag, Ag + ZnO, and Al + ZnO nanoparticles are fillers, whereas polymers such as poly (methyl methacrylate), polystyrene, and polyvinyl alcohol are used as the polymer matrix. The exceptional purity of the materials as prepared is confirmed by the examination of chemical mapping (EDS) spectroscopy. High absorption in the UV region has been seen in UV–visible absorption spectra, which is inversely related to the presence of Al + Ag, Al + ZnO, and Ag + ZnO nanocomposites. A linear absorption coefficient (α) has been used to show that absorption edges exist. The energy band gaps of all nanocomposites are found to be redshifted upon determination of the energy gap. The energy gap values for all samples decreased when Al + Ag, Al + ZnO, and Ag + ZnO nanoparticles were mixed with polymers. However, there is a noticeable reduction in the energy band gap in all nanocomposite samples. The created foil nanocomposites offer great potential for producing extremely efficient optoelectronic devices.