FTIR characterization analysis of BaTiO3 nanoparticles synthesized using Terminalia catappa leaf extract

Abstract

Ferroelectric materials are materials that are in great demand in high-density memory applications, such as ferroelectric random access memory, ferroelectric field effect transistors, negative capacitance field effect transistors, and ferroelectric tunnel junctions. Barium titanate (BaTiO₃) is a lead-free ferroelectric material with a high dielectric constant and low dielectric loss. The method used is sol gel for the synthesis of BaTiO₃ solution, extract for ketapang (Terminalia catappa) leaves, and characterized by FTIR. The FTIR spectrum synthesized with ketapang leaf extract displays several characteristic peaks in the mid-infrared region (4000 – 400 cm^-1). These peaks can be determined by the specific vibration mode of the structure and organic compounds contained in the ketapang leaf extract. BaTiO₃ has a cubic perovskite structure with a peak wave number of 600 cm^-1. Ketapang leaf extract is incorporated into the BaTiO₃ structure. BaTiO₃ has a Ti–O functional group. Ketapang leaf extract has C–O, C=O, C–H, and O–H functional groups.