Features of structure and optical properties GO and a GO/PVA composite subjected to gamma irradiation

Baghirov, Mahammad Baghir; Muradov, Mustafa; Eyvazova, Goncha; Mammadyarova, Sevinj; Gahramanli, Lala; Aliyeva, Gunel; Huseynov, Elchin; Abdullayev, Mahammadali

doi:10.1039/d3ra07186c

RSC Adv.

2023

DOI: 10.1039/d3ra07186c

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Features of structure and optical properties GO and a GO/PVA composite subjected to gamma irradiation

Mahammad Baghir Baghirov,

Mustafa Muradov,

Goncha Eyvazova

et al.

Abstract: In this study, a modified Hummers' method was employed to prepare graphene oxide (GO), which was then mixed with polyvinyl alcohol (PVA) polymer at varying weight concentrations (1 wt% and 5 wt%).

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2024

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Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials

Addayeva,

Azizian‐Kalandaragh,

Niftiyev

et al. 2024

Vinyl Additive Technology

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The control of dielectric permittivity and conductivity is a crucial factor in the development of certain electronic components. Materials based on layered structures and polyvinyl alcohol (PVA) show great potential for applications in supercapacitors. Therefore, the creation of polymer composites based on layered semiconductors and the determination of their physical properties is significant. In this investigation, a composite comprising 1 wt% FeGaInS4 dispersed in PVA was synthesized through mechanical mixing, where the FeGaInS4 crystal was incorporated into the PVA matrix. This study explores the physical characteristics of this composite for the first time. The structure of the composite was analyzed using x‐ray diffraction (XRD). Electrical properties and conductivity mechanisms were examined using a dielectric spectrometer. It was determined that the hopping model conductivity mechanism predominates in the FeGaInS4/PVA nanocomposite. For the 1 wt% FeGaInS4/PVA composite, system parameters were calculated at a temperature of 313 K and a frequency of 5 × 103 Hz. The parameters found are s = 0.814, potential barrier height WM = 0.868 eV, hopping length Rω = 14.7 × 10−10 m, and the concentration of pairs of states between, which charge carriers hop N = 1.396 × 1026 m−3.Highlights 1 wt% FeGaInS4 composite synthesized via mechanical assembly. Small crystals boost dielectric constant by 1.5× via interfacial polarization. The system parameters are defined: s = 0.814, WM = 0.868 eV, Rω = 14.7 × 10−10 m. Electrical conduction is multifaceted; conductance hopping dominates. Loss tangent decreases due to interfacial polarization effects.

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Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials

Addayeva,

Azizian‐Kalandaragh,

Niftiyev

et al. 2024

Vinyl Additive Technology

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Enhanced optical properties of graphite nanoflakes/polydimethylsiloxane nanocomposites induced by low-dose gamma irradiation

Chhetri,

Nguyen,

Song

et al. 2024

J Mater Sci

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Features of structure and optical properties GO and a GO/PVA composite subjected to gamma irradiation

Abstract: In this study, a modified Hummers' method was employed to prepare graphene oxide (GO), which was then mixed with polyvinyl alcohol (PVA) polymer at varying weight concentrations (1 wt% and 5 wt%).

Cited by 2 publications

References 47 publications

Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials

Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials

Enhanced optical properties of graphite nanoflakes/polydimethylsiloxane nanocomposites induced by low-dose gamma irradiation

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Features of structure and optical properties GO and a GO/PVA composite subjected to gamma irradiation

Abstract: In this study, a modified Hummers' method was employed to prepare graphene oxide (GO), which was then mixed with polyvinyl alcohol (PVA) polymer at varying weight concentrations (1 wt% and 5 wt%).

Cited by 2 publications

References 47 publications

Fabrication and dielectric spectroscopy analysis of FeGaInS4/PVA composite materials

Fabrication and dielectric spectroscopy analysis of FeGaInS4/PVA composite materials

Enhanced optical properties of graphite nanoflakes/polydimethylsiloxane nanocomposites induced by low-dose gamma irradiation

Contact Info

Product

Resources

About

Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials

Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials