Optical, structural, and electrical conductivity of PEO/chitosan incorporated by Se NPs produced by one-potential laser ablation

The laser ablation process has been utilized to manufacture the selenium nanoparticles (Se NPs). PEO/Cs (70% PEO/30% Cs) scattered by Se NPs at various ablation time. XRD analysis reveals reducing in crystallinity fabricated films. The size of the fabricated selenium nanoparticles is 34 nm. The physical properties (optical and electrical) of the produced films have been performed via various methods. The UV–Vis spectra are used to examine the optical properties of the polymer nanocomposites (PEO/Cs/Se NPs). The value of direct transition energy gap reduced from 5.35 to 4.96 by raising the content of selenium nanoparticles in the blend. In addition, the value of indirect energy gap reduced from 4.81 to 3.92 eV by raising the content of selenium nanoparticles in the blend. Electrical conductivity results revealed that raising the selenium nanoparticles concentration in PEO/Cs improved the dielectric performance of the PEO/Cs/Se NPs films. In the presence of a dielectric, the electrical relaxation dynamics were examined.