Fabrication and Study the Structure, Optical and Dispersion Parameters of PMMA with InCl3 Additive

Abstract

Polymethyl methacrylate films are prepared by casting method with various content of InCl₃ (2, 4%). X-ray diffraction (XRD) and optical microscope are used to determine the structural properties. Transmittance that determined using UV-Visible spectrophotometer and optical parameters also calculated. Urbach energy values increase with the increasing of InCl₃ and energy gap decreased from 3.849 eV of pure PMMA films to 3.230 eV of PMMA-4% InCl₃. Dispersion parameters are determined using Wemple-DiDomenico model. Refractive index data at infinite wavelength was found to obey single oscillator model.

Keywords: PMMA, Dispersion parameters, Composite, Optical properties.