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Abstract
Rhombohedral α-Fe2O3 nanoparticles doped with silver (Ag-α-Fe2O3) were successfully synthesized using a hydrothermal method. The structural characteristics and morphology of the synthesized nanoparticles were examined using X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM), wherein the Raman peak was observed at 218/cm. The electrical properties of the Ag-doped α-Fe2O3 nanoparticles layered in polyvinyl alcohol (PVA) film were analyzed through I-V curves, impedance graphs, and measurements of dielectric constant (Ɛ) and dielectric loss (Ɛ′). Through the I-V curve, a current value of 3.68 × 10−2 μA was obtained, which was 52 % greater than that of the PVA film at an applied voltage of ± 100 V. The results demonstrated that the Ag-doped α-Fe2O3 in the PVA film exhibited enhanced electrical properties, with significant increases in both dielectric constant (0.5 × 103) and dielectric loss (11 × 103). Ag-doped α-Fe2O3 in PVA film, therefore, appears to be a promising applicants in Nano electronics.
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