A Barium Strontium Titanate (BST) thin film with Ba0.2Sr0.8TiO3 structure has been made using the sol-gel method and annealed at temperature of 600°C and 650°C. The thin film of BST was characterized using X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), and impedance spectroscopy. The result of XRD characterization showed that the crystalline improved as the anne…