Structural, A.C electrical and Optical properties of (Polyvinyl alcohol–Polyethylene Oxide–Aluminum Oxide) Nanocomposites for Piezoelectric Devices

Jebur, Qayssar; Hashim, Ahmed; Habeeb, Majeed Ali

doi:10.21608/ejchem.2019.14847.1900

Cited by 44 publications

(10 citation statements)

References 29 publications

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“…Here, 𝑐 is the velocity of light in vacuum, and 𝑣 is the velocity of light in a medium. The extinction coefficient 𝑘 is defined by the following formula [12,13]:…”

Section: Methodsmentioning

confidence: 99%

Fabrication and Evaluation of Optical Characteristics of (PVA-MnO2–ZrO2) Nanocomposites for Nanodevices in Optics and Photonics

2023

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We study the impact of (MnO2–ZrO2) nanoparticles on optical properties of (PVA) polymer. Several samples were produced with different weight ratios of (MnO2–ZrO2) nanoparticles. To prepare the selected samples, the casting method is used. To record the absorption spectrum, wavelengths of 200–1100 nm are applied. We have determined the absorption coefficient, energy gap for indirect transitions (forbidden and allowed), optical constants (such as the dielectric constant with its imaginary and real parts, refractive index, and attenuation coefficient), and optical conductivity. The results indicate that there is a proportional relationship between the optical constants and the concentration of (MnO2–ZrO2) nanoparticles, which means that an increase of the concentration of (MnO2–ZrO2) nanoparticles leads to an increase of the optical constants, while the transmission decreases. Additionally, the optical energy gap decreases from 4.83 eV to 3.4 eV and from 4.65 eV to 3.28 eV with increasing the concentration of (MnO2–ZrO2) nanoparticles for allowed and forbidden indirect transitions, respectively. These results can be considered as key ones for the use of (PVA-MnO2–ZrO2) nanocomposites in various fields such as optoelectronics and photonics.

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“…Here, 𝑐 is the velocity of light in vacuum, and 𝑣 is the velocity of light in a medium. The extinction coefficient 𝑘 is defined by the following formula [12,13]:…”

Section: Methodsmentioning

confidence: 99%

Fabrication and Evaluation of Optical Characteristics of (PVA-MnO2–ZrO2) Nanocomposites for Nanodevices in Optics and Photonics

2023

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“…Cp denotes capacitance and (Co) denotes a vacuum capacitor. Dielectric loss (ε") is given by [14,15]…”

Section: Methodsmentioning

confidence: 99%

Fabrication and Tailored Structural and Dielectric characteristics of (SrTiO3/ NiO ) Nanostructure Doped (PEO/PVA) polymeric Blend for Electronics Fields

Mahdi

Habeeb

2022

Phys. Chem. Solid St.

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Films are prepared from (PEO/PVA) blend with various ratios of (SrTiO3/NiO) by using casting method. SEM images of (PEO/PVA/SrTiO3/NiO) nanocomposites show that many aggregates or chunks on the upper surface that are homogeneous and coherent. The (PEO/PVA/SrTiO3/NiO) nanocomposites contribute to tiny vibrational molecular movement, according to the (FTIR) analysis. Several polymer chains were also disrupted once (SrTiO3/NiO) nanoparticles were introduced. Instead, several additional chains were produced. Dielectric constant and dielectric loss decreases with increasing of frequency, while conductivity increases, as well as dielectric constant increases from 4.73 to 5.99 and dielectric loss rise from 0.85 to1.80, while the conductivity increases from 4.7×10-11 S/cm to 1.10×10-10 S/cm when (SrTiO3/NiO) NPs reached 4wt.%. The results of structural and electrical properties show that the (PEO/PVA/SrTiO3/NiO) NCs may be used for various electronics fields.

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“…The materials used in this paper are polystyrene (PS), chromium oxide (Cr The dielectric loss is given by [20,21] ............ (2) The dissipated power in the insulator is represented by the existence of alternating potential as a function of the alternating conductivity, using equation (3) [22][23][24]:…”

Section: Methodsmentioning

confidence: 99%

Fabrication of (PS-Cr2O3/ ZnCoFe2O4) Nanocomposites and Studying their Dielectric and Fluorescence Properties for IR Sensors

Habeeb

Hashim²,

Hayder

2019

Egypt. J. Chem.

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Structural, A.C electrical and Optical properties of (Polyvinyl alcohol–Polyethylene Oxide–Aluminum Oxide) Nanocomposites for Piezoelectric Devices

Cited by 44 publications

References 29 publications

Fabrication and Evaluation of Optical Characteristics of (PVA-MnO2–ZrO2) Nanocomposites for Nanodevices in Optics and Photonics

Fabrication and Evaluation of Optical Characteristics of (PVA-MnO2–ZrO2) Nanocomposites for Nanodevices in Optics and Photonics

Fabrication and Tailored Structural and Dielectric characteristics of (SrTiO3/ NiO ) Nanostructure Doped (PEO/PVA) polymeric Blend for Electronics Fields

Fabrication of (PS-Cr2O3/ ZnCoFe2O4) Nanocomposites and Studying their Dielectric and Fluorescence Properties for IR Sensors

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