Tailoring the structural and optical features of (PEO–PVA)/(SrTiO3–CoO) polymeric nanocomposites for optical and biological applications

Mahdi, Shaimaa Mazhar; Habeeb, Majeed Ali

doi:10.1007/s00289-023-04676-x

Cited by 48 publications

(3 citation statements)

References 41 publications

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“…Figure 5 Figure 6 shows the plot of the variation of A.C. electrical conductivity of PVA-MnO 2 -ZrO 2 nanocomposites with frequency at room temperature. The A.C. electrical conductivity increases with increasing of frequency of electric field for all the samples of nanocomposites, where the frequency acts as a pumping force, pushing the charge carriers between the different conduction states [48,49].…”

Section: Resultsmentioning

confidence: 97%

Preparation and Characterization of PVA/MnO2/ZrO2 Nanocomposites for Electrical and Electronics Devices

2023

Nanosistemi, Nanomateriali, Nanotehnologii

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The PVA-MnO 2 -ZrO 2 nanocomposites are prepared by using casting method with various concentrations of MnO 2 -ZrO 2 nanoparticles (0%, 1%, 2%, and 3% wt.). The dielectric characteristics of the PVA-MnO 2 -ZrO 2 nanocomposites are examined for use in different optoelectronic applications. The dielectric properties of nanocomposites demonstrate that dielectric constant, dielectric loss and A.C. electrical conductivity of PVA rise with rising in MnO 2 -ZrO 2 nanoparticles' concentration. Both the dielectric constant and the dielectric loss of PVA-MnO 2 -ZrO 2 nanocomposites decrease, while the A.C. electrical conductivity rises with rising in frequency. The results on dielectrical characteristics show that the PVA-MnO 2 -ZrO 2 nanocomposites may be used for various electronics fields.Нанокомпозити полівініловий спирт (ПВС)-MnO 2 -ZrO 2 одержано методом лиття з різними концентраціями наночастинок MnO 2 -ZrO 2 (0%, 1%, 2% і 3% за масою). Досліджено діелектричні характеристики нанокомпозитів ПВС-MnO 2 -ZrO 2 для використання в різних оптоелектронних застосуваннях. Діелектричні властивості нанокомпозитів свідчать про те, що діелектрична проникність, діелектричні втрати та електропровідність змінного струму ПВС зростають зі зростанням концентрації наночастинок MnO 2 -ZrO 2 . Як діелектрична проникність, так і діелектричні втрати нанокомпозитів ПВС-MnO 2 -ZrO 2 зменшуються, а електропровідність змінного струму зростає зі зростанням частоти. Результати стосовно діелектричних характеристик показують, що нанокомпозити ПВС-MnO 2 -ZrO 2 можуть бути використані для різних галузей електроніки.

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Section: Resultsmentioning

confidence: 97%

Preparation and Characterization of PVA/MnO2/ZrO2 Nanocomposites for Electrical and Electronics Devices

2023

Nanosistemi, Nanomateriali, Nanotehnologii

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“…Because charge carriers moved more easily at high frequencies, the electrical conductivity of PMMA/Si 3 N 4 /TaC nanocomposites increases with frequency [45][46][47]. Figure (9) reveals that the electrical conductivity of nanocomposites rises with the rising of Si 3 N 4 /TaC nanoparticle content due to rise in the ionic charge carriers and the formation of a continuous network of Si 3 N 4 /TaC nanoparticles inside polymer matrix [48][49][50]. The results of the ε', ε˝, and A.C. conductivity are shown in Table (1).…”

Section: Resultsmentioning

confidence: 99%

Effect of Si3N4/TaC nanomaterials on the structural and electrical characteristics of poly methyl methacrylate for electrical and electronics applications

Mohammed,

Habeeb

2023

East Eur. J. Phys.

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In this study, the casting method was used to prepared PMMA/Si3N4/TaC nanocomposites with variant content (0,2,4,6,8) % wt of Si3N4/TaC nanoparticles. The structural and electrical properties have been investigated. Scanning electron microscope (SEM) indicate that the homogenous, smooth and dispersed of Si3N4 and TaC NPs inside the PMMA matrix due to strong covalent interaction between the Si3N4 and TaC NPs in the PMMA matrix which mean a good method for prepared films. Optical microscope images explained that when increasing in content of nanoparticles that forming network paths inside the polymeric matrix that act as charge carriers. FTIR spectra indicate to a physical interference between the polymer matrix and nanoparticles. The AC electrical properties of nanocomposites obtained that the dielectric constant and dielectric loss rise with rising content of nanoparticles and decrease with rising frequency of applied electric field. While the A.C electrical conductivity rise with rising the frequency and weight content of Si3N4/TaC nanoparticles. This results indicated that the PMMA/Si3N4/TaC nanostructures can be considered as promising materials for electronics and electrical nanodevices.

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“…The blends formed by the combination of PEO-PVA and SrTiO 3 -CoO are very promising materials for use in optoelectronics nanodevices and for their antibacterial properties. 6 The findings suggest that there is a direct correlation between the optical properties and the amount of (MnO 2 -ZrO 2 ) nanoparticles in the PVA matrix. 7 The findings on the structural and electrical characteristics indicate that the (PEO/PVA/SrTiO 3 /NiO) NCs have potential applications in diverse electronic domains.…”

mentioning

confidence: 90%

An Insight into the Impact of Nano CuCo₂O₄ Doping on the Optical and Dielectric Performance of PMMA/Carbon Nanoparticles

El-Naggar,

Heiba,

Kamal

et al. 2024

ECS J. Solid State Sci. Technol.

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The blends obtained were subjected to characterization using SEM (scanning electron microscopy) and XRD (x-ray diffraction). By utilizing diffuse reflectance measurements, an extensive investigation into different optical properties was carried out, covering energy band gap, refractive index, extinction coefficient, dielectric constant, conductivity, as well as nonlinear optical properties. After the incorporation of CNPs /CuCo2O4 in the polymer, the transmittance of the PMMA experienced a decline from 92% to 42%, while the absorbance, reflectance and refractive index exhibited an increase. As the blend incorporated CuCo2O4, a continuous reduction in both direct and indirect optical band gap energies of PMMA (4.94 and 4.69 eV) was observed attaining 4.4 and 4.37 eV for 2.5 wt.% CuCo2O4, respectively. It is noteworthy that the initially inadequate optical conductivity of PMMA exhibited a significant improvement, leading to enhanced linear and nonlinear optical parameters with increasing CuCo2O4 doping levels. Analysis of fluorescence spectra (FL) revealed a decrease in FL intensity and a shift in maximum position as the CuCo2O4 content (x) increased, resulting in the generation of the CIE chromaticity diagram. Dielectric measurements provided insights into the impact of CuCo2O4 content on alternating current (AC) conductivity, energy density, dielectric properties, and electric modulus across all blends.

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Tailoring the structural and optical features of (PEO–PVA)/(SrTiO3–CoO) polymeric nanocomposites for optical and biological applications

Cited by 48 publications

References 41 publications

Preparation and Characterization of PVA/MnO2/ZrO2 Nanocomposites for Electrical and Electronics Devices

Preparation and Characterization of PVA/MnO2/ZrO2 Nanocomposites for Electrical and Electronics Devices

Effect of Si3N4/TaC nanomaterials on the structural and electrical characteristics of poly methyl methacrylate for electrical and electronics applications

An Insight into the Impact of Nano CuCo₂O₄ Doping on the Optical and Dielectric Performance of PMMA/Carbon Nanoparticles

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Tailoring the structural and optical features of (PEO–PVA)/(SrTiO3–CoO) polymeric nanocomposites for optical and biological applications

Cited by 48 publications

References 41 publications

Preparation and Characterization of PVA/MnO2/ZrO2 Nanocomposites for Electrical and Electronics Devices

Preparation and Characterization of PVA/MnO2/ZrO2 Nanocomposites for Electrical and Electronics Devices

Effect of Si3N4/TaC nanomaterials on the structural and electrical characteristics of poly methyl methacrylate for electrical and electronics applications

An Insight into the Impact of Nano CuCo2O4 Doping on the Optical and Dielectric Performance of PMMA/Carbon Nanoparticles

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An Insight into the Impact of Nano CuCo₂O₄ Doping on the Optical and Dielectric Performance of PMMA/Carbon Nanoparticles