The structure and optical properties of PVA-BaTiO3 nanocomposite films

Soliman, T.S.; Zaki, M. F.; Hessien, M.M.; Elkalashy, Sh.I.

doi:10.1016/j.optmat.2020.110648

Cited by 96 publications

(45 citation statements)

References 53 publications

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“…[ 8 ] Our obtained findings are consonant with published ones. [ 3,8,12 ] Moreover, the real energy gap values of the prepared NCs can be estimated by extrapolating the linear portions of the optical dielectric loss plots to match hν = 0, where the intercepts represent E g( ε i) values (Figure 7C). The estimated E g( ε i) values (Table 1) agree with those obtained from Tauc's method which confirm the direct electronic transitions ( r = 2) behavior of the prepared films.…”

Section: Resultsmentioning

confidence: 99%

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The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

Badawi

Alharthi

Althobaiti

et al. 2021

Vinyl Additive Technology

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The effect of iron oxide nanoparticles (Fe2O3 NPs) content on the structural and optical parameters of polyvinyl alcohol/graphene (PVA/G) blend has been investigated. Fe2O3 NPs were synthesized by the hydrothermal procedure. Nanocomposite (NC) films of PVA/G filled with different amounts of Fe2O3 NPs were equipped using the solution casting technique. The surface morphology, structural, and optical properties were examined by scanning electron microscope (SEM), X‐ray diffraction (XRD), and ultraviolet‐visible‐near‐IR (UV‐Vis‐NIR) spectrophotometry techniques, respectively. SEM micrographs reveal the homogenous distribution of Fe2O3 NPs in the PVA/G matrix. The XRD analysis exhibits the formulation of the hematite phase of Fe2O3 NPs and the semi‐crystalline nature of PVA/G NC films. The UV‐Vis‐NIR data analysis shows that the optical properties of the PVA/G blend could be tailored via Fe2O3 NPs filling. Wemple–DiDomenico model is utilized to explore the dispersion parameters of the prepared NCs. A significant effect of Fe2O3 NPs filling is realized on the oscillator and dispersion energies, infinite refractive index, dielectric constant, average oscillator strength and the lattice dielectric constant of the NC films. PVA/G filled Fe2O3 NPs are suggested for different optical and storage applications.

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Section: Resultsmentioning

confidence: 99%

“…These applications include optoelectronics, solar cells, LEDs, electrolytes, superconductors, and others. [ 7,10–16 ] Among these polymers, polyvinyl alcohol (PVA) is preferable since it has many novel characteristics over others. Some of its features: biocompatibility, water‐solubility, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

Badawi

Alharthi

Althobaiti

et al. 2021

Vinyl Additive Technology

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“…This was proved by the study of Niel et al on ZnO/TiO 2 nanofibers [14]. In addition, there are many studies on the preparation of BaTiO 3 through electrospinning by J Yuh et al [15] with BaTiO 3 /PVP fibers. In this study, DSSC was fabricated using BaTiO 3 /CS/PVA nanofibers through electrospinning instead of traditional DSSC from TiO 2 material.…”

Section: Introductionmentioning

confidence: 89%

Fabrication of electrospun BaTiO₃/chitosan/PVA nanofibers and application for dye-sensitized solar cells

Van‐Pham

Phat

Hòa

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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Perovskite BaTiO3 nanoparticles were synthesized by a hydrothermal method. BaTiO3/chitosan (CS)/Polyvinyl alcohol (PVA) nanofibers with an average diameter of 265.3 ± 52 nm were fabricated via an electrospinning method. The nanofibers were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), and thermal analysis method (TGA). The photoanodes of dye-sensitized solar cells (DSSC) were fabricated based on the BaTiO3/CS/PVA nanofibers. The photovoltaic properties of the cells were calculated based on the current density – voltage curves. The maximum power conversion efficiency of DSSC with CS/PVA/BaTiO3 nanofibers was 0.49% with the natural dye sensitizer extracted from the leaf of the magenta plant.

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“…FTIR spectra indicated chemical nature, chemical bond formation, and understanding the interaction between Na + ions and the host polymer in blend polymer composites films. The FT‐IR technique utilizes pure polymers and complexation of polymer‐salt‐filler sample analysis 51 . The FTIR spectra are recorded for blended polymer salt with different concentrations of BaTiO 3 fillers over wavenumber in the range of 4000–400 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

High performance of the sodium‐ion conducting flexible polymer blend composite electrolytes for electrochemical double‐layer supercapacitor applications

et al. 2022

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Herein, we present the synthesis of a nanocomposite blend of polyvinyl alcohol (PVA), polyethylene glycol (PEG), sodium nitrate (NaNO3), and various weight percent of nanofillers, BaTiO3, using a simple standard solution casting technique. The prepared nanocomposites are characterized in detail via techniques such as X‐ray diffraction technique, field‐emission scanning microscope, FTIR, and Raman spectra for confirming the crystal structure, morphology, and chemical bond formation within the samples, respectively. The suitable ionic conductivity of prepared samples is in the range of 10−4–10−8 S/cm at room temperature. Further, its maximum electrochemical stability window is ~4.1 V, and the ionic transference number is about 0.96 (15 wt%) at room temperature. The results associated with the optimized polymer nanocomposite motivated us to check its practical applicability for supercapacitors. The cyclic voltammetry of the fabricated cell based on optimized polymer as separator cum electrolyte appears as a distorted rectangle with no redox peaks. The cell charge storage mechanism is explored to be the electric double layer (EDLC) in nature. The maximum specific capacitance exhibited by the cell is nearly 4.4 F/g at a scan rate of 3 mV/s. The energy and power densities delivered by the same cell are equal to 27.7 W h kg−1 and 9972 W kg−1, respectively, which sustain for 100 cycles. The results of the designed cell reveal that both blend polymer composite electrolyte films and the composite electrode can be implemented to be used for EDLC supercapacitor.

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The structure and optical properties of PVA-BaTiO3 nanocomposite films

Cited by 96 publications

References 53 publications

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

Fabrication of electrospun BaTiO₃/chitosan/PVA nanofibers and application for dye-sensitized solar cells

High performance of the sodium‐ion conducting flexible polymer blend composite electrolytes for electrochemical double‐layer supercapacitor applications

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The structure and optical properties of PVA-BaTiO3 nanocomposite films

Cited by 96 publications

References 53 publications

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

Fabrication of electrospun BaTiO3/chitosan/PVA nanofibers and application for dye-sensitized solar cells

High performance of the sodium‐ion conducting flexible polymer blend composite electrolytes for electrochemical double‐layer supercapacitor applications

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Fabrication of electrospun BaTiO₃/chitosan/PVA nanofibers and application for dye-sensitized solar cells