The role of TiO2 nanoparticles in enhancing the structural, optical, and electrical properties of PVA/PVP/CMC ternary polymer blend: nanocomposites for capacitive energy storage

Damoom, Mohammed M.; Saeed, Abdu; Alshammari, Eida M.; Alhawsawi, Abdulsalam M.; Yassin, A. Y.; Abdulwahed, J. A. Mohammed; Al-Muntaser, A. A.

doi:10.1007/s10971-023-06223-6

Cited by 46 publications

(6 citation statements)

References 67 publications

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“…Furthermore, we also observed an inverse correlation between absorbance and wavelength. This increase in absorbance may be attributable to a rise in the density of charged carriers [25], a finding that would be consistent with the results of a previous study [26].…”

Section: Resultssupporting

confidence: 92%

The Structural and Optical Properties of Polyvinyl Pyrrolidone-doped with Zinc Selenide

Hadi,

Mohammed,

Musa

et al. 2024

Nano Biomedicine and Engineering

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This study describes a method for solution casting of polyvinyl pyrrolidone (PVP) reinforced with 0 wt.%, 1 wt.%, 3 wt.%, and 5 wt.% zinc selenide (ZnSe). After production, scanning electron microscopy (SEM) was used to examine the nanocomposite surfaces, and thus confirmed the constant dispersion of ZnSe nanoparticles (NPs) within PVP. Subsequent Fourier transformation infrared spectroscopy (FTIR) analysis showed that the ZnSe NPs and PVP matrix interacted physically. Analysis of the optical properties of PVP-ZnSe nanocomposites showed that increased ZnSe NPs concentration in the PVP solution increased absorbance and decreased transmittance. Further integration of ZnSe NPs at a concentration of 6 wt.% within the PVP-ZnSe nanocomposite resulted in a decrease in the energy gap. Specifically, we observed a decrease in the energy gap from 4 to 3.1 eV for the allowed indirect transition and from 3.94 to 2.9 eV for the forbidden indirect transition. Overall, the weight percentage of ZnSe NPs demonstrates a direct relationship with their absorption factor, extinction factor, index of refraction, real and imaginary components of dielectric constants, and optical conductivity. These results indicate that PVP-ZnSe nanocomposites possess exceptional optical capabilities, and may be suitable for use in photodetector applications, especially as ultraviolet (UV) detectors.

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Section: Resultssupporting

confidence: 92%

The Structural and Optical Properties of Polyvinyl Pyrrolidone-doped with Zinc Selenide

Hadi,

Mohammed,

Musa

et al. 2024

Nano Biomedicine and Engineering

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“…Both the two moduli display virtually very low value at lowest f values, which indicates that the charge carriers are constrained in the blend and that the effect of electrode polarization is minimized. M′ displays a reverse behavior for ε′ , so M′ is the retro quantity of ε′ 23 . M′ grow linearly with f in the middle region of the applied frequencies and is nearly constant at higher f. This linear increase is owing to the charge carriers possess motilities of short range and the resulted conductivity 23 .…”

Section: Dielectric Moduli and Argend Plotsmentioning

confidence: 98%

“…This blue shift may have happened due to NPs agglomeration and improving the ordering and crystallinity inside the blend, as seen from the XRD patterns of the samples. Similarly, doping with 0. www.nature.com/scientificreports/ to 5.34 (4.77) eV at 3.0 wt% TiO 2 loading 23 . In contrast, loading 0.1 wt% SrTiO 3 /carbon nanotubes widened the E d g ( E i g ) of the polyvinylidene from 5.56 (5.27) eV to 5.70 (5.50) eV.…”

Section: Uv/vis-nir Spectra and Optical Featuresmentioning

confidence: 99%

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Tuning the band gap, optical, mechanical, and electrical features of a bio-blend by Cr2O3/V2O5 nanofillers for optoelectronics and energy applications

Alanazi,

Alenazi,

El Sayed

2024

Sci Rep

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This work presents a facile approach for controlling the optical and electrical parameters of a biopolymeric matrix for optoelectronics. Vanadium oxide (V2O5) and chromium oxide (Cr2O3) nanoparticles (NPs) were prepared and incorporated into the carboxymethylcellulose/polyethylene glycol (CMC/PEG) blend by simple chemical techniques. Transmission electron microscopy (HR-TEM), and X-ray diffraction (XRD) data showed that V2O5 and Cr2O3 exhibited spherical shapes with sizes in the range of 40–50 nm and 10–20 nm, respectively. In addition, the blend's degree of crystallinity was sensitive to the V2O5 and Cr2O3 doping ratios. The scanning electron microscopy (FE-SEM) and the elemental chemical analysis (EDAX) used to study the filler distribution inside the blend, and confirmed the existence of both V and Cr in the matrix. Fourier transform infrared (FTIR) spectroscopy showed that the dopants significantly affected the blend reactive (C–O–C, OH, and C=O) groups. The stress–strain curves illustrated the reinforcing effect of the dopants up to 1.0 $$\text{wt\%}$$ wt\% Cr2O3/V. The transmittance and absorption index spectra in the visible-IR wavelengths decreased with increasing filler content. Utilizing Tauc's relation and (optical) dielectric loss, the direct (indirect) band gap narrowed from 5.6 (4.5) eV to 4.7 (3.05) eV at 1.0 $$\text{wt\%}$$ wt\% Cr2O3/V. All films have an index of refraction in the range of 1.93–2.17. AC conductivity was improved with increasing filler content and temperature. The energy density at 50 °C is in the range of 1–3 J/m3. The influence of V2O5 and Cr2O3 content on the optical conductivity, dielectric constant, loss, and dielectric modulus of CMC/PEG was reported. These enhancements in electrical and optical properties, along with the potential for band gap engineering, offer promising prospects for advanced applications in optoelectronics and energy-related fields.

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“…Similarly, a variety of novel polymer blends, including PVA/PVP/CMC-ZnO hybrid nanocomposite, PVA/PVP/CMC ternary polymer blend, hybrid nanofillers (Gold quantum dots and Copper nanoparticles) on the PEO/CMC blend, and PVA/SA blend with Ag/Se nanofillers, were created using the solution casting method. These blends demonstrate remarkable dielectric properties for use in various energy-related applications [ [20] , [21] , [22] , [23] , [24] , [25] ].…”

Section: Introductionmentioning

confidence: 99%

Biocompatible neem gum-modified polyvinyl alcohol composite as dielectric material for flexible energy devices

Parangusan,

Subramaniam,

babu

et al. 2024

Heliyon

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The role of TiO2 nanoparticles in enhancing the structural, optical, and electrical properties of PVA/PVP/CMC ternary polymer blend: nanocomposites for capacitive energy storage

Cited by 46 publications

References 67 publications

The Structural and Optical Properties of Polyvinyl Pyrrolidone-doped with Zinc Selenide

The Structural and Optical Properties of Polyvinyl Pyrrolidone-doped with Zinc Selenide

Tuning the band gap, optical, mechanical, and electrical features of a bio-blend by Cr2O3/V2O5 nanofillers for optoelectronics and energy applications

Biocompatible neem gum-modified polyvinyl alcohol composite as dielectric material for flexible energy devices

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