Study the optical properties of the polymer (PMMA)composite to films Based on Malachite Green Dye

Document Type : Original Article

Author

Abstract
his study includes the preparation of a thin film of Malachite Green dye (MG) by casting method on a glass substrate. the polymethacrylate (PMMA) was applied (0.5ml) with the dye. to increase the adhesion of dye films, On the glass surface, The films were prepared with different concentrations (6mM, 8mM, 10mM, 12mM, and 16mM) to find a best optical property of the films. The linear optical Parameters such as extinction coefficient, refractive index, real and imaginary parts, Urbach energy and optical conductivity. The average refractive index by using the absorbance and transmittance measurement were studied by atomic force microscopy (AFM) study shows that the roughens of films increase with the increase of the dye concentration. Study of linear optical (UV-visible) Spectrophotometer (Shimadzu) the spectral range (200-1100nm) showed an increasing concentration of the dye. the energy gap was estimated in the range of (3.26 -2.64) eV for the different films.

Keywords


Volume 9, Issue 1 - Serial Number 1
Spring 2023
Pages 95-104

  • Receive Date 15 November 2025
  • First Publish Date 15 November 2025
  • Publish Date 01 June 2024