The Impact of Gamma Radiation on the Structural, Optical, and Dielectric Properties of Polyacrylamide/Barium Titanate Nanocomposites

Zaghlool, R. A.; Moghny, A. S. Abdel; Mohamed, F.

doi:10.1149/2162-8777/acce6c

Cited by 3 publications

(1 citation statement)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, low mobilities less mechanical strength, and lack of stability are the major obstacles that limit its performance, thereby preventing it from industrialization. [8][9][10][11] Generally, adding inorganic nanofillers to the polymer matrix enhances the physical and chemical properties of the hosting matrix [12][13][14] or even induces new properties. 15,16 Several attempts have been made to enhance the mobility of P3HT by increasing the conductive pathways.…”

Section: Introductionmentioning

confidence: 99%

An investigation of structural, optical, and electrical properties of poly(3‐hexylthiophene)/reduced graphene oxide nanocomposites for electronic and optoelectronic applications

Elashry,

Mohamed,

Sharmoukh

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

Poly(3‐hexylthiophene)/reduced graphene oxide nanocomposites (P3HT/rGO) were successfully prepared starting with 3‐hexylthiophene (3HT) monomer. 1H NMR was utilized to determine the regioregularity of the polymer and the degree of polymerization. The interaction of rGO was identified by employing Fourier transform infrared spectroscopy and X‐ray diffraction (XRD). Besides, the XRD results revealed the crystallinity was enhanced with the increment of rGO. Upon filling with rGO, High‐resolution transmission electron high‐resolution transmission electron microscopy images manifested a fluffy morphology, while field emission scanning electron microscope demonstrated a high level of compactness and uniformity. Optical spectrophotometry (UV–Vis–NIR) was implied to determine the impact of rGO on the optical properties. It was found that the bandgap was reduced upon the addition of rGO. The temperature and frequency‐dependent electrical properties including complex permittivity, tangent loss, complex electrical modulus, impedance, and conductivity for revealing both the dipolar relaxation and charge transportation were investigated. It is revealed that P3HT/rGO has significantly higher conductivity values compared to P3HT. Further, the temperature dependence of the Dc—conductivity for pure P3HT was governed by the Vogel–Fulcher–Tamman (VFT) approach, whereas it was altered to Arrhenius upon the inclusion of rGO. The fact that the P3HT/rGO nanocomposite has a higher ε' value, lower tangent loss, and higher conductivity than the pristine P3HT, suggested these nanocomposites are more favorable than pure P3HT in optoelectronic and thermoelectric applications.

show abstract

Section: Introductionmentioning

confidence: 99%

An investigation of structural, optical, and electrical properties of poly(3‐hexylthiophene)/reduced graphene oxide nanocomposites for electronic and optoelectronic applications

Elashry,

Mohamed,

Sharmoukh

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

Preparation and characterization of low loss polyvinyl butyral/barium titanate nanocomposite films for energy storage applications

Awadallah-F,

Ali,

Zaghlool

et al. 2024

J Mater Sci

View full text Add to dashboard Cite

For energy storage applications, attaining high dielectric permittivity as well as low loss factor is the foremost target. This could be accomplished via filling polymer matrices with inorganic filler which is characterized by relatively high dielectric permittivity. In the present study, polyvinyl butyral (PVB) was used as a matrix material for preparing nanocomposite films filled with different weight fractions (2, 5, 10, and 15%) of barium titanate (BaTiO3) using the casting approach. The results show that BaTiO3 (BT) is well incorporated inside the PVB matrix. Although the dielectric permittivity has been decreased from 3.61 to 2.41 at 1 kHz upon filling the PVB matrix with 5 wt. % of BT, the PVB-BT-NPs-5 nanocomposite film shows the lowest loss factor ~ 0.0049, nearly half that for PVB, 0.0092, which implies the increased film ability to keep its stored energy. The PVB-BT-NPs-5 has been irradiated with gamma radiation to investigate its impact on the structure beside its dielectric and thermal properties. The crystallite size of BT has been decreased from 20.64 to 17.77 nm as PVB-BT-NPs-5 nanocomposite film has been irradiated at a dose of 0.5 kGy. The dielectric permittivity has been decreased from 2.41 to 2.37 at 1 kHz, whereas an increase from 0.0049 to 0.0073 in the loss factor is observed. Furthermore, the thermal stability has been decreased due to the deformation induced by gamma rays inside the nanocomposite films. Therefore, these nanocomposite films could be better exploited in energy storage applications in its un-irradiated form.

show abstract

Participation of Polymer Materials in the Structure of Piezoelectric Composites

Pîrvu,

Sover,

Abrudeanu

2024

Polymers

View full text Add to dashboard Cite

This review explores the integration of polymer materials into piezoelectric composite structures, focusing on their application in sensor technologies, and wearable electronics. Piezoelectric composites combining ceramic phases like BaTiO3, KNN, or PZT with polymers such as PVDF exhibit significant potential due to their enhanced flexibility, processability, and electrical performance. The synergy between the high piezoelectric sensitivity of ceramics and the mechanical flexibility of polymers enables the development of advanced materials for biomedical devices, energy conversion, and smart infrastructure applications. This review discusses the evolution of lead-free ceramics, the challenges in improving polymer–ceramic interfaces, and innovations like 3D printing and surface functionalization, which enhance charge transfer and material durability. It also covers the effects of radiation on these materials, particularly in nuclear applications, and strategies to enhance radiation resistance. The review concludes that polymer materials play a critical role in advancing piezoelectric composite technologies by addressing environmental and functional challenges, paving the way for future innovations.

show abstract

The Impact of Gamma Radiation on the Structural, Optical, and Dielectric Properties of Polyacrylamide/Barium Titanate Nanocomposites

Cited by 3 publications

References 46 publications

An investigation of structural, optical, and electrical properties of poly(3‐hexylthiophene)/reduced graphene oxide nanocomposites for electronic and optoelectronic applications

An investigation of structural, optical, and electrical properties of poly(3‐hexylthiophene)/reduced graphene oxide nanocomposites for electronic and optoelectronic applications

Preparation and characterization of low loss polyvinyl butyral/barium titanate nanocomposite films for energy storage applications

Participation of Polymer Materials in the Structure of Piezoelectric Composites

Contact Info

Product

Resources

About