Tuning the Optical, Electrical and Dielectric Properties of Sodium Alginate/Polyethylene Glycol Blend by Incorporating AgNO3 NPs for Optoelectronic Devices and Energy Storage Applications

被引：6

作者：

Aldahiri, Reema H. ^{[1
]}

Algethami, Norah ^{[2
]}

Rajeh, A. ^{[3
]}

Al-Sulami, Ahlam I. ^{[1
]}

Alnawmasi, Jawza Sh ^{[4
]}

Abdelrazek, E. M. ^{[5
]}

Farea, M. O. ^{[6
]}

Alsulami, Fatimah Mohammad H. ^{[1
]}

Alghamdi, Haifa Mohammed ^{[7
]}

机构：

[1] Univ Jeddah, Coll Sci, Dept Chem, Jeddah, Saudi Arabia

[2] Taif Univ, Coll Sci, Dept Phys, Taif 21944, Saudi Arabia

[3] Amran Univ, Fac Appl Sci, Phys Dept, Sanaa, Yemen

[4] Qassim Univ, Coll Sci, Dept Chem, Buraydah 51452, Qassim, Saudi Arabia

[5] Mansoura Univ, Fac Sci, Dept Phys, Mansoura 35516, Egypt

[6] Ibb Univ, Fac Sci, Phys Dept, Ibb, Yemen

[7] Univ Jeddah, Coll Sci, Dept Phys Sci, Jeddah, Saudi Arabia

来源：

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS | 2024年 / 34卷 / 11期

关键词：

AgNO3; nanoparticles; NaAlg/PEO blend; XRD; Electrical conductivity; Dielectric properties; Energy storage; NANOPARTICLES; NANOCOMPOSITES; BEHAVIORS; ALGINATE; WATER;

D O I：

10.1007/s10904-024-03148-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This study investigates the properties of novel flexible polymer nanocomposite films made with polyethylene glycol (PEG), sodium alginate (NaAlg), and silver nitrate (AgNO3) nanoparticles. The nanocomposites were fabricated using a casting method and characterized by various techniques to understand the influence of AgNO3 content on their optical, electrical and dielectric properties. The frequency range for characterization was 10 Hz to 7 MHz. XRD analysis revealed a decrease in the intensity of the peaks in the nanocomposite films compared to the pristine blend, suggesting changes in the crystalline structure with increasing AgNO3 concentration. FT-IR spectroscopy confirmed the successful formation of the composite material through interaction between the components. Ultraviolet-visible (UV-Vis) spectroscopy was utilized to examine the optical properties of the films. Tauc's plot analysis was used to calculate the energy bandgap values for both direct and indirect transitions in the nanocomposites. The results showed a decrease in the bandgap (E-g) with increasing AgNO3 content. This trend was observed for both direct transitions (E-g decreasing from 5.59 eV to 5.16 eV) and indirect transitions (E-g decreasing from 4.93 eV to 3.95 eV). Electrical and dielectric characterization revealed that the nanocomposite with 20 wt% AgNO3 loading exhibited the most favorable electrical properties. The direct current conductivity (sigma(dc)) increased significantly from 2.55 x 10(- 10) S/cm to 5.65 x 10(- 9) S/cm, while the frequency exponent (S) decreased from 0.81 to 0.49. These observations suggest significant modifications in the electrical transport behavior of the films upon AgNO3 incorporation. The improved electrical properties make these PEG/NaAlg-AgNO3 nanocomposites promising candidates for applications in flexible solar cells and electrical energy storage devices.

引用

页码：5266 / 5276

页数：11

共 32 条

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Morsi, M. A.
Abdelrazek, E. M.
Tarabiah, A. E.
Salim, E.
JOURNAL OF ENERGY STORAGE, 2024, 80
[32] Tailoring the structural, optical, dielectric, and electrical properties of PEO/PVA blend using graphene nanoplates for energy storage devices (Oct, 10.1007/s10854-022-08999-9, 2022)
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2022, 33 (30) : 23878 - 23878

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