Work

Nanoscale interfacial electroactivity in Fe2O3NPs/PVDF-TrFE films with improved dielectric properties as a potential negative tribolayer for TENG applications

Year: 2025

Type: article

Abstract: The addition of iron oxide nanoparticles (Fe2O3NPs) into PVDF-TrFE matrix is introduced to prepare self-polarized nanocomposites by a casting method. Morphological and structural analysis of PVDF-TrFE along with various concentrations of Fe2O3NPs is realized. Loading 10 mg Fe2O3NPs introduces a remarkable enhancement of PVDF-TrFE electroactive polymorph. UV–VIS absorption spectra show a gradual red shift of the main absorption edge beside the emerged absorption band at around 400 nm. Also, the optical properties were represented in determination of Urbach energy, direct and indirect optical band gap energy, and refractive index. The FTIR spectra show a remarkable increase in the intensity of the electroactive vibrational bands of Fe2O3NPs/PVDF-TrFE nanocomposites due to the interaction between polymer chain and nanoparticle. Also, the crystallinity of PVDF-TrFE is clearly enhanced, as elucidated by FTIR and XRD. Moreover, DSC realizes the electroactive polymorph promotion of PVDF-TrFE. The obtained dielectric parameters and electrical conductivity of Fe2O3NPs/PVDF-TrFE nanocomposites are considerably enhanced. Graphical abstract

Source: The European Physical Journal Plus

DOI: 10.1140/epjp/s13360-025-06553-0

Authors: Ayman S. Elmezayyen, M. A. Morsi, O. M. Al-Aqbi, M. M. El-Tonsy, M. I. El-Henawey

Institutions: Mansoura University, New Mansoura University, Taibah University, Egyptian Russian University

Language: English

Topic: Dielectric materials and actuators

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,890

Funders: Science and Technology Development Fund, Mansoura University