Probing the influence of ZnFe2O4 doping on the optical and dielectric characteristics of PMMA/PANi

Optical and Dielectric Features of PVA/CMC/PVP/ZnMn2O4/CuCo2O4/x wt% MWCNTs Blended Polymers for Optoelectronic Applications

“…41 Similar results were detected as poly (vinyl chloride) (PVC) doped with Sn 0.9 Fe 0.1 S 2 and polyaniline (PANI) 42 or poly(methyl methacrylate) (PMMA) doped with nano ZnFe 2 O 4 and PANI. 43 Moreover, the values of k exhibited an initial increment followed by a subsequent decrement as the wavelength extended within the UV range. In the visible range, the k values rose as the wavelength increased, Fig.…”

“…Miller's relations can be utilized to calculate three significant nonlinear parameters, which mainly depend on the refractive indices of the blends. Figure 7 illustrates the relationship between the photon energy of incident light and the nonlinear parameters of the investigated blends, including the first-order nonlinear susceptibility (χ (1) ), the nonlinear refractive index (n 2 ) and the third-order nonlinear susceptibility (χ (3) ). Based on these plots, the NLO parameters of PVA/CMC/PVP blended polymers were improved when loaded with ZnMn 2 O 4 /CuCo 2 O 4 and/or MWCNTs.…”

“…where R i and R F are the interface reflectance and reflection from one face, respectively. The following relationships were utilized to calculate the absorbance (A), extinction coefficient (k), refractive index (n), the direct/indirect optical band gap (E g ) values, the real (ε r ) and imaginary (ε i ) components of the optical dielectric constant, the surface energy loss function (SELF), volume energy loss function (VELF), optical conductivity (σ opt ), linear optical susceptibility (χ (1) ), nonlinear optical susceptibility (χ (3) ), and nonlinear refractive index (n 2 ) parameters for each blend: 1-3,23,24…”

“…Polymer nanocomposites have attracted the attention of numerous researchers owing to their multifunctional properties and high performance achieved by the presence of small quantities of nanoparticles within the polymeric matrix. [1][2][3] Polyvinyl alcohol (PVA) is a polymer material with numerous advantageous characteristics, including biodegradability and mechanical strength. 4 PVA is a water-soluble, highly crystalline, nontoxic polymer with strong hydrophilic and film production abilities.…”