Facile synthesis of barium strontium titanate: Effects of processing parameters on optical and electrical properties

Abstract

Perovskite material namely Barium strontium titanate (BST) was prepared by solid state reaction (SSR) method. The three different processing parameters are introduced to SSR method to influence the structural, morphological, optical and electrical properties of BST. Ultrasonic wave irradiation, microwave irradiation and ball milling process to SSR reaction was completed successfully. To perceive the characteristic properties of the prepared BST, various characterisation techniques were employed. X-Ray diffraction studies revealed that the prepared materials are basically in crystalline nature with cubical structure also high in purity. Scanning Electron microscopy studies showed that the ultrasonication influenced SSR method produces the clear and definite morphology compared with other two synthesis routes involved samples. The optical absorption behaviour of the prepared BST had been highly improved when various synthesis routes added to SSR method which is known from UV–Vis spectra. The electrochemical impedance spectroscopy was used to demonstrate the electrical responses of the prepared material. In overall, from the observed results revealed that the optical and electrical properties of BST could be improved by the addition of processing parameters to SSR method for energy conversion applications.