Optical Systematic and Morphological Characterization of PMMA Thin Films Containing Copper(II) and Zinc(II) Chloride Additives for Selective Surfaces

Zainulabdeen, Khalid; Abed, Rasheed; Yousif, Emad

doi:10.22036/pcr.2024.477090.2575

Optical Systematic and Morphological Characterization of PMMA Thin Films Containing Copper(II) and Zinc(II) Chloride Additives for Selective Surfaces

Document Type : Regular Article

Authors

Khalid Zainulabdeen ¹

Rasheed Abed ²

Emad Yousif ¹

¹ Department of Chemistry, College of Science, Al-Nahrain University, P.O. Box: 64021, Jadria, Baghdad, Iraq

² Department of Mechanical Engineering, College of Engineering, Al-Nahrain University, P.O. Box: 64040, Jadria, Baghdad, Iraq

https://doi.org/10.22036/pcr.2024.477090.2575

Abstract

The current study involved the fabrication of poly(methyl methacrylate) thin films with ligands and metal chlorides using a straightforward casting method. Composite films of PMMA solution were prepared by stirring and sonicating, using a blend of Cu(II) and Zn(II) metal chlorides in the PMMA lattice, ligands were enclosed within PMMA lattice chains also, and their presence was detected using XRD and AFM. The computed values encompass the optical properties, dielectric constant, and Urbach energy. A decrease in reflectance, transmittance, and extinction factor. On the other hand, there was an enhancement in the absorbance, skin depth, and refractive index. The direct energy gap witnessed a decrease in value, specifically from 4.65 eV to 2.20 eV, whereas the indirect energy gap dropped from 4.20 eV to 2.20 eV, conversely, the actual dielectric constant exhibited an increase in its values. The Urbach energy increased significantly from 3.388 eV to 10.410 eV, indicating a rise in energetic disorders between the electronic bands. Correspondingly, the addition of the ligand and metal chlorides reinforced the PMMA

Graphical Abstract