| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Saeed, Abdu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Enhancement of the structural, optical, and dispersion performance of polyvinyl alcohol via coronene additive for optoelectronic applicationscitations
- 2023Fabrication and characterizations of nanocomposite flexible films of ZnO and polyvinyl chloride/poly(N-vinyl carbazole) polymers for dielectric capacitors
- 2023Radiographic testing of 3D-printed thermoplastics using Am-241 as a gamma-ray sourcecitations
- 2023Synthesis of polyaniline/spinel ferrites core-shell nanocomposites via sucrose auto-combustion and in situ polymerization
- 2023Incorporated <scp>TiO<sub>2</sub></scp> nanoparticles into <scp>PVC</scp>/<scp>PMMA</scp> polymer blend for enhancing the optical and electrical/dielectric properties: Hybrid nanocomposite films for flexible optoelectronic devicescitations
- 2023An insight into the role of titanium oxide nanofiller on the structural, optical, electrical, and dielectric characteristics of PS/PVK compositecitations
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article
An insight into the role of titanium oxide nanofiller on the structural, optical, electrical, and dielectric characteristics of PS/PVK composite
Abstract
<jats:title>Abstract</jats:title><jats:p>Nanocomposite films made of polystyrene (PS) and polyvinyl carbazole (PVK) and filled with varying quantities of titanium oxide (TiO<jats:sub>2</jats:sub>) nanoparticles (NPs) were prepared using the solution casting process. The TiO<jats:sub>2</jats:sub> NPs’ impact on the pure PS/PVK blend’s structural, optical, and conductive properties was investigated and explained. X-ray diffraction (XRD) and Transmission electron microscopy (TEM) measurements indicate that the synthesized TiO<jats:sub>2</jats:sub> NPs’ size ranges between 12 and 32 nm and has a tetragonal anatase phase. The XRD scans also indicate that the PS/PVK filling with TiO<jats:sub>2</jats:sub> NPs decreases the nanocomposite crystallinity. Fourier transform infrared (FTIR) analysis shows the main distinctive absorption peaks of PS and PVK, whose intensities changed randomly after filling. Moreover, the highest TiO<jats:sub>2</jats:sub> NPs content showed a new peak at 449 cm<jats:sup>−1</jats:sup>. The UV/visible measurements showed that the optical energy gaps for the direct and indirect permitted transitions decreased as the TiO<jats:sub>2</jats:sub> NPs content increased. Using impedance spectroscopy at room temperature, the AC electrical conductivity of the PS/PVK mixture containing TiO<jats:sub>2</jats:sub> NPs was investigated over a broad frequency range from 10<jats:sup>−1</jats:sup> to 10<jats:sup>7</jats:sup> Hz. It has been shown that the frequency dependence of AC electrical conductivity obeys Jonscher’s rule, and the increase of TiO<jats:sub>2</jats:sub> NPs concentration in the blend induces the formation of a percolating network within the composite. It has also been shown that the composite’s dielectric loss and constant increase with nanoparticle concentration.</jats:p>