DOI: https://doi.org/10.36719/2663-4619/114/256-262
Aysel Hamzayeva
Ganja State University
PhD in Physics
https://orcid.org/0009-0002-3219-6776
ayselhemzeyeva15@gmail.com
Calculation of Optical Constants of ASPE+xvol%Bi2Te3 Composites
Abstract
The article provides information on the study of optical constants in composites obtained by adding Bi2Te3 compounds to low-density polyethylene. In the study, the real (n) and imaginary (k) parts of the refractive index of composite materials, absorption (α) and reflection (R) coefficients, electrical energy losses and frequency dependence of the real and imaginary parts of optical electrical conductivity were theoretically calculated. The obtained results show that as the concentration of Bi₂Te₃ filler increases, the optical constants calculated according to the real and imaginary parts of the dielectric permittivity of composite materials undergo certain changes. Most likely, this can be explained by the increase in the volume fraction of Bi₂Te₃ filler and the increase in their share on the composite surface, i.e. the clusters they form. Correct calculation of optical constants of composite materials allows more efficient use of these materials and increases their effectiveness in optical technologies, photonics, optical cables, laser systems and solar energy applications.
Keywords: low-density polyethylene, Bi2Te3, composite materials, optical constants