Optical characterizations of PMMA/metal oxide nanoparticles thin films: bandgap engineering using a novel derived model

• DOI: 10.1016/j.heliyon.2021.e05952
• Publication Date: 2021-01-18T07:57:17Z
• Authors: Qais M. Al-Bataineh; Ahmad.A. Ahmad; A.M. Alsaad; Ahmad D. Telfah
• Keywords: Thermogravimetric analysis; Thermal Stability

We synthesize and optically characterize pure PMMA incorporated with metal oxides nanoparticles (MO NPs) such as ZnO, CuO, TiO2 SiO2 NPs nanocomposite thin films weight concentration of 10% using dip-coating technique. SEM images MO show that all have nearly an average size around 50 nm. The optical parameters as, (n k), optoelectronics properties, dispersion, band-gap energy band structure as-prepared were determined by analyzing the transmittance reflectance spectra. Mainly, (Eg) thickness are evaluated to a high degree accuracy utilizing Q-functional derived mathematical model recently published. Q(E) is functional containing experimental transmission reflection data incident photon energy. Eg value un-doped found be 4.273 eV. This decreases pre-selected introduced into films. These values in excellent agreement those Tauc method. FTIR technique employed elucidate vibrational bands nanocomposites intermolecular bonding between matrix MOs NPs. Thermal stability investigated employing thermogravimetric analysis (TGA) at temperatures up 400 °C. obtained TGA thermograms indicate adding yield better thermal stability. doped great promise for fabricating high-efficient optoelectronic devices.