Abstract
The goal of this study was to investigate the optical properties of the prepared CA-MoO3 nanocomposites films. CA has been chosen as a host matrix and then doped with MoO3 with different concentrations (2.5, 5, 10 and 15wt. %) of MoO3 by using casting procedure. CA-MoO3 films were characterized by UV-Visible spectrophotometer within the wavelength range of 200 nm-800 nm. The Linear optical parameters (transmission (T), extinction coefficient (K), reflectance (R), refractive index (n), real (ε1) and imaginary (ε2) part of the dielectric constant and optical conductivity (σopt)) of CA-MoO3 films were obtained from absorption spectra. The volume (VELF) and surface (SELF) energy loss function of CAMoO3 films were obtained by complex dielectric constant. The Dispersion parameters (dispersion energy (Ed), oscillation energy (E0), static dielectric constant (ε0) and static refractive index (n0)) were calculated using theoretical Wemple-DiDomenico model. The nonlinear optical susceptibility x(1), x(3) and nonlinear refractive index n2 were evaluated from the linear optical parameters using semiempirical relation. The results show that the Linear and nonlinear optical parameters change with the increase of molybdenum trioxide concentration, where, the transmittance, oscillator energy, the volume (VELF) and surface (SELF) energy loss decreases with the increase of MoO3 concentration.