Linear Optical Properties of Bromocresol Green Dye Doped Poly Methyl Methacrylate Thin Films

  • A. J. Almusawe Department of Science, College of Basic Education, Sumer University, Thi-Qar, Iraq.
  • T. F. Hassen Department of Science, College of Basic Education, Sumer University, Thi-Qar, Iraq.
  • M. A. Rahma Department of Physics, College of Science, Basrah University, Basrah, Iraq.
  • N. F. Abd alrasheed Department of Laser, College of Applied Science, Technology University, Baghdad, Iraq

Abstract

In this study, we investigated the effect of Bromocresol green dye (BCG) of the PMMA thin films optical properties. Films of Poly Methyl Methacrylate doped by 10% BCG doping ratio to prepared two concentrations 2x10-4 and 6x10-4 M of PMMA-BCG dye were deposited on glass substrate using free casting method at room temperature. The optical properties of the films were determined using UV-Visible absorbance and transmittance spectra at the 300 - 900 nm wavelength range. The linear absorption coefficient and the extinction coefficient were calculated. The results showed that the optical properties were increasing by increasing the dye concentration, while the optical energy gap was decreasing with the doping. Also from the linear optical properties result the PMMA-BGC thin films are a promised materials for nonlinear optics applications.

Published
Mar 4, 2018
How to Cite
ALMUSAWE, A. J. et al. Linear Optical Properties of Bromocresol Green Dye Doped Poly Methyl Methacrylate Thin Films. Iraqi Journal of Science, [S.l.], p. 299-306, mar. 2018. ISSN 2312-1637. Available at: <http://scbaghdad.edu.iq/eijs/index.php/eijs/article/view/79>. Date accessed: 19 sep. 2018.
Section
Physics