Department of physics, College of Education for pure sciences , University of Babylon ,Iraq
Abstract
This study uses the casting method to create a PS/PMMA/ZnSe nanocomposite with different ZnSe NP concentrations (1, 3, and 5 wt%). In order to test the optical properties, a UV-Vis spectrophotometer with a wavelength range of 200–1100 nm was employed. As the concentration of (ZnSe) nanoparticles rises, so do the absorbance and absorption coefficient of (PS/PMMA/ZnSe) nanocomposites. All films have an absorption coefficient of less than (104) cm-1. The concentration of (ZnSe) nanoparticles increases the refractive index, extinction coefficient, and dielectric constant (real, imaginary), while the concentration of (ZnSe) nanoparticles decreases the energy gap for indirect transition (allowed, forbidden), transmittance, and optical conductivity. These properties can be used for films in a variety of applications.The concentration of (ZnSe) nanoparticles increases the refractive index, extinction coefficient, and dielectric constant (real, imaginary), while the concentration of (ZnSe) nanoparticles decreases the energy gap for indirect transition (allowed, forbidden), transmittance, and optical conductivity. These properties can be used for films in a variety of applications.
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