Abstract

• In this paper, undoped bismuth ferrite (BiFeO3) and silver-doped bismuth ferrite (Ag-BiFeO3) samples were prepared by the sol-gel method. The resulting powder was characterized by XRD and EDXRF techniques. Comparative studies of the electrical properties of these samples were investigated by using an LCR meter in the frequency range of 20 to 100 MHz at 2 V. In this study, it was found that the AC and CD conductivities, dielectric loss tangent, dielectric constant, and capacitance depend on the frequency. The conductivity values of AC and DC increase with increasing frequency. Dielectric loss tangent, dielectric constant, and capacitance decrease with increasing frequency. These two samples demonstrated semiconducting properties in accordance with their electrical properties. In addition, Ag-BiFeO3 indicates higher conductivity values than the BiFeO3 sample. According to the results, both BiFeO3 and Ag-BiFeO3 samples could be used as touch point electrodes in a touch sensor device for electrical applications.