Steps Toward the Band Gap Identification in Polystyrene Based Solid Polymer Nanocomposites Integrated with Tin Titanate Nanoparticles.

Autor: Hussein AM; Hameed Majid Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Sulaimani 46001, Iraq., Dannoun EMA; Associate Director of General Science Department, Woman Campus, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia., Aziz SB; Hameed Majid Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Sulaimani 46001, Iraq.; Department of Civil engineering, College of Engineering, Komar University of Science and Technology, Sulaimani 46001, Iraq., Brza MA; Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur 50728, Malaysia., Abdulwahid RT; Department of Physics, College of Education, University of Sulaimani, Sulaimani 46001, Iraq., Hussen SA; Hameed Majid Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Sulaimani 46001, Iraq., Rostam S; Department of Mechanical Engineering/Production, College of Engineering, Sulaimani Polytechnic University, Sulaimani 46001, Iraq., Mustafa DMT; Department of Mechanical Engineering/Production, College of Engineering, Sulaimani Polytechnic University, Sulaimani 46001, Iraq., Muhammad DS; Department of Physics, College of Education, University of Sulaimani, Sulaimani 46001, Iraq.
Jazyk: angličtina
Zdroj: Polymers [Polymers (Basel)] 2020 Oct 10; Vol. 12 (10). Date of Electronic Publication: 2020 Oct 10.
DOI: 10.3390/polym12102320
Abstrakt: In the current study, the film fabrication of polystyrene (PS) based polymer nanocomposites (NCs) with tuned refractive index and absorption edge was carried out using the solution cast method. X-ray diffraction (XRD) and ultraviolet-visible (UV-Vis) light characterization techniques were performed. The structural and optical properties of the prepared films were specified. The hump of PS decreased significantly when SnTiO 3 nanoparticles (NPs) were introduced. Sharp and high intense peaks of SnTiO 3 NPs at a high filler ratio were observed. The crystalline size was determined for SnTiO 3 NPs from the sharp crystalline peaks using Debye-Scherrer's equation and was found to be 25.179 nm, which is close enough to that described by the supplier. Several optical parameters, such as absorption coefficient (α), refractive index ( n ), and optical dielectric properties, were investigated. The absorption spectra were tuned with increasing SnTiO 3 NPs. Upon the addition of the NPs to the PS host polymer, the absorption edge undergoes shifting to lesser photon energy sides. The optical dielectric constant (ε') was correlated to the refractive index. The study of the optical band gap was conducted in detail using both Tauc's model and the optical dielectric loss (ε″) parameter. The results showed that the ε″ parameter is noteworthy to be measured in the optical band gap study of materials.
Competing Interests: The authors declare no conflict of interest.
Databáze: MEDLINE
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