Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 139, Issue 26, Pages -Publisher
WILEY
DOI: 10.1002/app.52433
Keywords
magnetic nanoparticles; nanocomposite films; nickel nanoparticles; optical properties; PL spectroscopy; surfaces and interfaces; XPS spectroscopy; XRD
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Funding
- Jordan's Scientific Research Support Fund (SRSF) [Bas/1/10/2015]
- Deutscher Akademischer Austauschdienst (DAAD) [57477325]
- Fundacao para a Ciencia e Tecnologia (FCT, Portugal)/PIDDAC through the Strategic Funds [UIDB/04650/2020-2023]
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This work investigates the influence of positioning nickel nanoparticles on the surface of nanocomposite films and reveals the impact mechanism through X-ray photoelectron spectroscopy experiments and spectroscopic analysis. It demonstrates that the desired optoelectronic properties and new optical and electrical characteristics can be achieved by using an ultra-uniform magnetic field. The study also discovers the formation of Ni oxides on the surface.
This work studies the impact of positioning nickel nanoparticles (Ni-NPs) on the surface of doped (P84-PEO) nanocomposite films by using an ultra-uniform magnetic field as a model for positioning magnetic NPs inside a polymeric matrix. This process is used to achieve desired and adjustable optoelectronic properties and to obtain new optical and electrical characteristics. P84-PEO copolymer doped with Ni-NPs exposed to a 450 mT magnetic field during the preparation give rise to a momentous increase in surface roughness, surface reactivity, and modified optical parameters, besides forming Ni oxides on the surface. Based on X-ray photoelectron spectroscopy experiments, substantial extra shifts occurred in the binding energies of photo-excited electrons from the O1s and C1s core levels. Additionally, the deconvoluted O1s spectra displays an additional photoelectron peak at 530.0 eV, most likely attributed to oxidized Ni-NPs at the surface. Moreover, optical and structural properties were studied using UV-Vis and PL spectroscopy and X-ray diffraction.
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