Title: Energy band gap investigation of Al nanoparticles/polystyrene nanocomposite foils

Authors: H. Naser; S.M. Mohammad; H.M. Shanshool; Z. Hassan; Z. Al-Hazeem

Addresses: Institute of Nano Optoelectronics Research and Technology (INOR), Universiti Sains Malaysia, 11800, Penang, Malaysia; Directorate of Material Research, Ministry of Science and Technology, 10070, Baghdad, Iraq ' Institute of Nano Optoelectronics Research and Technology (INOR), Universiti Sains Malaysia, 11800, Penang, Malaysia ' Directorate of Material Research, Ministry of Science and Technology, 10070, Baghdad, Iraq ' Institute of Nano Optoelectronics Research and Technology (INOR), Universiti Sains Malaysia, 11800, Penang, Malaysia ' Institute of Nano Optoelectronics Research and Technology (INOR), Universiti Sains Malaysia, 11800, Penang, Malaysia; Gifted Students School in Anbar, Gifted Guardianship Committee, Ministry of Education, 31001, Ramadi, Iraq

Abstract: In this work, polystyrene/aluminium (PS/Al) nanocomposites were fabricated based on the various concentrations (0, 1, 5, 10, and 15 mg) of Al nanoparticles using the casting method. The UV-Visible absorption spectra of PS/Al nanocomposites as foils, the trend of pure PS, and the resulting PS/Al nanocomposites were all investigated. The neat PS polymer did not show any peak in the absorption spectra. However, the resulting absorption of PS/Al increased with the Al nanoparticles nanofillers. All samples had their energy band gap determined. The results show a decreasing energy band gap from 4.40 eV to 3.7 eV as the concentrations of Al nanoparticles are increased.

Keywords: aluminium energy gap; linear absorption coefficient; nanocomposites; polystyrene.

DOI: 10.1504/IJNT.2024.141762

International Journal of Nanotechnology, 2024 Vol.21 No.4/5, pp.313 - 323

Published online: 01 Oct 2024 *

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