Study the structure of selenium modified polyethylene oxide/polyvinyl alcohol (PEO/PVA) polymer blend

Waly, A.L.; Abdelghany, A.M.; Tarabiah, A. E.

doi:10.1016/j.jmrt.2021.08.078

Cited by 57 publications

(17 citation statements)

References 21 publications

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“…Other FTIR peaks at 1562 cm À1 , 1418 cm À1 , 1327 cm À1 , 1238 cm À1 , 1141 cm À1 , 917 cm À1 , and 836 cm À1 with the corresponding vibration modes were reported in the literature. 31,33,34 The enlarged FTIR spectra of the PZ4 composite film in the 400-760 cm À1 range (inset of Fig. 5(a)) provide additional confirmation for the multiphase, i.e., tetragonal and monoclinic mixture of ZrO 2 nanoparticles.…”

Section: Ftir and Raman Transmittance Spectroscopymentioning

confidence: 73%

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Karmakar

Das

Dutta

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Ftir and Raman Transmittance Spectroscopymentioning

confidence: 73%

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Karmakar

Das

Dutta

et al. 2023

Phys. Chem. Chem. Phys.

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“…[ 43 ] The absorption band at 914 cm −1 is assigned to CH 2 rocking vibration and the band at 827 cm −1 corresponds to C–C stretching and also C–H out‐of‐plane vibrations. [ 44–46 ]…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Polyvinyl Alcohol (PVA)/ZrO₂ Composite Membranes

Mehto,

Chauhan

2023

Physica Status Solidi (b)

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Nanocomposite membranes of ZrO2 doped polyvinyl alcohol (PVA) with varying amounts of ZrO2 nanoparticles (5, 9, and 13 wt %) have been prepared via a solution casting technique. ZrO2 nanoparticles using as a filler synthesized by sol‐gel technique. Effects of ZrO2 nanoparticles doping on composites morphological, optical, luminescence and structural, characteristics has been analyzed using atomic force microscopy (AFM), X‐ray diffraction (XRD), UV‐visible spectroscopy, photoluminescence spectroscopy, Fourier transform infrared spectroscopy (FTIR), X‐ray photon electron spectroscopy (XPS) and Field emission scanning electron microscopy (FESEM). The XRD studies confirmed the successful incorporation of ZrO2 into the PVA matrix and showed improved crystallinity following doping of ZrO2 in PVA. The average size of ZrO2 nanoparticles calculated by XRD agreed well with the particles size measured by the TEM. UV‐visible studies of nanocomposite membranes show the enhancement in absorption intensity and slight red shift in peak positions as the ZrO2 concentration increases. The enhancement in absorption intensity suggests the potential applications in filters and solar cells. The maximum PL intensity was observed for 5 wt % of ZrO2 in PVA/ZrO2 composite membrane suggested that this concentration is most suitable for optoelectronic applications.This article is protected by copyright. All rights reserved.

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“…The spectra of the pure blend show the characteristic absorption bands of PVA at 1373, 1256, and 863 cm −1 as a result of CH2 bending vibration, 2907 cm −1 due to CH 2 symmetrical stretching, and 1086 cm − 1 due to CO stretching [16][17][18][19]. The CMC characteristic peaks were also observed at 1603 cm −1 due to asymmetric COO stretching, and 1419 cm −1 due to CH 2 scissoring [17].…”

Section: Ftir Analysismentioning

confidence: 96%

The Influence of NiO Nanoparticles on Structural, Optical and Dielectric Properties of CMC/PVA/PEDOT:PSS Nanocomposites

Salim

Tarabiah

2023

J Inorg Organomet Polym

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The solution casting process was used to fabricate nanocomposite samples composed of carboxymethylcellulose (CMC), polyvinyl alcohol (PVA), poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and filled with varied concentrations of nickel oxide nanoparticles (NiO NPs). The effect of NiO nanoparticles on the structural, optical, and electrical properties of the pure CMC/PVA/PEDOT:PSS mixture was studied and discussed. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis revealed that the NiO NPs are cubic in phase and range in size from 10 to 55 nm. The XRD analysis of the incorporated films indicated that the NiO NPs crystallinity increased at expense of the CMC/PVA/PEDOT:PSS composites. Fourier Transform Infrared (FTIR) examination revealed the main absorption vibrational peaks of CMC, PVA, PEDOT:PSS, and Ni-O, whose intensities changed randomly after filling, revealing the intermolecular interaction between the nanocomposite components. The UV and visible range absorption spectra showed a sharp peak around 228 for the pure blend, which can be assigned to the π→π* transition. After being filled with NiO NPs, the nanocomposites produced displayed new peaks at 292 and 422 nm that steadily increased with increasing NiO NPs concentration. The optical energy gap (Eg) was computed, and it was discovered that when the NiO NPs content increased, the Eg decreased (from 4.88 to 4.06 eV). At room temperature and over a wide frequency range, between 10− 1 and 107 Hz, the samples’ impedance, AC conductivity, and dielectric qualities were examined. Increased NiO NPs content was seen to gradually enhance dielectric loss (up to 2255), and dielectric constant (up to 311). The AC conductivity of the filled samples is also enhanced and corresponds to Jonscher power law. By analysing impedance components of the Z*, the equivalent electrical circuit for each sample was determined. Because of the considerable improvement in optical and electrical properties, these composite films could compete for usage in optoelectronic applications.

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Study the structure of selenium modified polyethylene oxide/polyvinyl alcohol (PEO/PVA) polymer blend

Cited by 57 publications

References 21 publications

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Preparation and Characterization of Polyvinyl Alcohol (PVA)/ZrO₂ Composite Membranes

The Influence of NiO Nanoparticles on Structural, Optical and Dielectric Properties of CMC/PVA/PEDOT:PSS Nanocomposites

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Study the structure of selenium modified polyethylene oxide/polyvinyl alcohol (PEO/PVA) polymer blend

Cited by 57 publications

References 21 publications

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Preparation and Characterization of Polyvinyl Alcohol (PVA)/ZrO2 Composite Membranes

The Influence of NiO Nanoparticles on Structural, Optical and Dielectric Properties of CMC/PVA/PEDOT:PSS Nanocomposites

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Preparation and Characterization of Polyvinyl Alcohol (PVA)/ZrO₂ Composite Membranes