Novel PEVA/PMMA-based nanocomposites containing ZnO–Co nanoparticles: investigation of optical, dielectric and electrical properties for energy storage and organic optoelectronic devices

被引：0

作者：

Eman Aldosari ^{[1
]}

E. M. Abdelrazek ^{[2
]}

M. O. Farea ^{[2
]}

Omer Nur ^{[3
]}

Maamon A. Farea ^{[4
]}

A. Rajeh ^{[2
]}

机构：

[1] King Saud University,Department of Chemistry, College of Science

[2] Mansoura University,Department of Physics, Faculty of Science

[3] Linkoping University,Department of Science and Technology

[4] Universiti Sultan Zainal Abidin,Faculty of Innovative Design and Technology

来源：

Optical and Quantum Electronics | / 57卷 / 4期

关键词：

Nanocomposites; XRD; Optical properties; Dielectric properties; AC conductivity;

D O I：

10.1007/s11082-025-08129-9

中图分类号：

学科分类号：

摘要：

In the present study, Polyethylene vinyl acetate (PEVA) and Polymethyl methacrylate (PMMA) blend-based nanocomposites were prepared by using various concentrations of Co-doped ZnO (ZnO–Co) nanofiller to investigate the impact of nanofiller addition on specific physical attributes and structural changes. The XRD study revealed that the PEVA/PMMA is a semicrystalline blend, and ZnO–Co incorporation degrades its crystallinity. The complexation behaviour of our as-prepared PEVA/PMMA-ZnO–Co nanocomposites is displayed in the FTIR spectra. UV–visible spectroscopy studies were used to estimate the optical properties (i.e., Urbach energy, Eg direct and Egi indirect). Moreover, the direct and indirect energy gap decreased from 5.18 and 4.82 eV for the pure blend to 4.21 and 3.24 eV for Blend-6% ZnO–Co, respectively. In contrast, the Urbach energy increased from 0.258 to 0.547 with a 6% ZnO–Co concentration. The frequency-dependent AC conductivity of the PEVA/PMMA-ZnO–Co was utilized to evaluate the dynamic ion behaviour of all the as-prepared samples. Additionally, frequency graphs of the M′ and M″, ε′ and ε″ at various concentrations and room temperature (RT) were presented. According to the optical and dielectric results, the generated PEVA/PMMA-ZnO–Co nanocomposites may be suitable for energy storage devices like supercapacitors and organic optoelectronic devices.

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