Electrical Properties of Copper Iodine Prepared by Exploding Wire

Abdullah, Sawsan H.; Salman, Mohammed Oudah; Humud, Hammad R.

doi:10.33640/2405-609x.1138

Cited by 2 publications

(3 citation statements)

References 14 publications

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“…The ε2 almost constant at high frequency, greater than 550 kHz. These results designate that the conductivity and dielectric parameters of the prepared samples were appeared strongly dependent on frequency and highly affected with the added CNTs [19]. The value of ε2 increased with increasing CNTs ratio due to the effect surface states [21].…”

Section: Resultsmentioning

confidence: 66%

“…S value describe the relation between 𝜎 𝐴.𝐶 corresponding to frequency. According to the correlated barrier hopping model (CBH), the ac conductivity takes place by hopping over potential barriers between localized states [19]. Increasing the CNTs contents causes to increase in the ac conductivity due to creating more localized states or by decreasing the Coulomb barriers between the localized states [8].…”

Section: Resultsmentioning

confidence: 99%

“…Figure 6 shows the behaviour of dielectric constant (ε1) versus angular frequency for the PVA-PVP blend samples and the reinforced samples with different ratios of CNTs. It seemed that the ε1 decreases with increasing frequency which attributed to the growth of polarization with different polarization kinds contributed with the final polarization [19]. The first type of polarization is polarization by charge carriers at the electrodes, which occurs at low frequencies.…”

Section: Resultsmentioning

confidence: 99%

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Physical Properties of PVA:PVP blend reinforced by MWCNT

Mahmood

Habubi

2022

J. Phys.: Conf. Ser.

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The polyvinyl alcohol (PVA), Polyvinylpyrrolidone (PVP), PVA-PVP blend, and reinforced-sample with multi-walled carbon nanotubes (MWCNTs) were prepared in different proportions by casting technique. X-ray diffraction testing denotes a blending of copolymers and the added CNTs. The FE-SEM images illustrate rubber-like entangled of pure PVA-PVP blend. The MWCNTs of 1% ratio completely imbedded within the polymer and the blend appeared higher compact. The stress-strain curves for PVA-PVP blend sample and samples reinforced with CNTs show that the sample stiffness increased, where the elongation reduced when the carbon nanotube added increased to 1.5 wt% due to the contribution of binding to the added MWCNTs which limits the flexibility of the sample. The sample delivery behaviour greatly affected the charge carriers hopping over the barriers between neighbouring localized states. Increasing the MWCNT contents leads to an increase in the AC conductivity due to the creation of more localized states or by reducing the potential barriers. The dielectric constant (ε1) of the PVA-PVP blend samples decreased with increasing frequency until it reached quasi-constant at higher frequencies. The dielectric constant also decreased with the increase of the carbon nanotube contents. The dielectric loss (ε2) also decreases with frequency. These results demonstrated that the conductivity and dielectric parameters of the copolymer samples strongly depend on frequency and are significantly affected by the proportion of the added MWCNTs.

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Section: Resultsmentioning

confidence: 66%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Physical Properties of PVA:PVP blend reinforced by MWCNT

Mahmood

Habubi

2022

J. Phys.: Conf. Ser.

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Synthesis and characterization PVA/plasma-functionalized MWCNTs nanocomposites films

Farag

Abdel‐Fattah

2023

J Polym Res

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Thin films of polyvinyl alcohol (PVA) loaded with various concentrations of (f-MWCNTs) were prepared via the regular casting method. The physicochemical characteristics of pure and PVA/f-MWCNTs films were investigated with various techniques; X-ray diffractometer (XRD), Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), UV-visible spectroscopy (UV-Vis), and thermogravimetric analysis (TGA). Moreover, the impact of loading ratios of f-MWCNTs on the dielectric constant and AC conductivity of the PVA/f-MWCNTs nanocomposite film was examined. XRD results suggest a possible improvement in the crystallinity of the PVA/f-MWCNTs composite film compared to a pristine one. Also, FTIR and XPS results confirm the formation of a hydrogen bond between PVA chains and f-MWCNTs. The optical band gaps of the PVA/f-MWCNTs composite film decrease, while the optical conductivity (σopt), dielectric constant (έ), and AC conductivity increase with increasing wt% of f-MWCNTs in the PVA matrix. Further, the thermal stability of PVA/f-MWCNTs films improved in comparison with that of PVA film.

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Electrical Properties of Copper Iodine Prepared by Exploding Wire

Cited by 2 publications

References 14 publications

Physical Properties of PVA:PVP blend reinforced by MWCNT

Physical Properties of PVA:PVP blend reinforced by MWCNT

Synthesis and characterization PVA/plasma-functionalized MWCNTs nanocomposites films

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