Identification of giant dielectric permittivity in the BiVO4

Abstract In this work the BiVO 4 ceramic matrix was prepared by the conventional solid-state reaction. The phase was calcined at 500 °C, sintered at 800 °C and characterized by X-ray Diffraction (XRD). The obtained phase presents a scheelite ABO 4 structure. For this particular structure scanning electron microscopic analysis was performed. The dielectric properties were investigated in the temperature range from 220 to 460 °C in radio-frequency (1 Hz–1 MHz). The sample display giant dielectric permittivity (e′ > 2 × 10 6 ) behavior which might be relevant for future technological applications.