Fabrication and Study the Optical Properties and Dispersion Parameters of PVA/PAAm with CuNW Additive

Due to the scientific, industrial, electrical, and medical importance, it was necessary to study the properties of overlapping nanocomposites. Therefore it gained attention and directed scientists and researchers in the study of its structure and optical characteristics and other characteristics. In the present work, the influence of Copper Nanowire (CuNW) addition on several optical characteristics of polymers was investigated. For this purpose, many films have been made by adding CuNW to polymers with various weight percentages of (CuNW) with polymer utilizing the casting method. The structure of the nanocomposite (PVA-PAAm-CuNW) Optical microscopy was used to investigate the morphology of the samples, which revealed an excellent distribution of CuNW in the blend. Using a visible ultraviolet spectrophotometer to investigate the optical properties and record the absorption spectrum. The wavelength range of (190-1200) nm was used to record absorption spectra. The extinction coefficient, the CuNW addition increased the refractive index, while both the transmittance and the energy gap decreased. The Wemple–DiDomenico method was used to compute the dispersion parameters. Ed, Eo, n(0), M-1, and M-3 decreased as the CuNW content in the PVA-PAAm- CuNW films increased. The obtained energy gap from this model agreed with the data obtained from Tauc model. These findings suggest that nanocomposites with such inclusions may be able to develop better and broader uses.