Barium Titanate (BaTiO3) is a perovskite-structured material with a high dielectric constant, and it is a ferroelectric material. This means that its electrical polarization can be reversed by an applied electric field. Due to its unique properties, BaTiO3 has a wide range of applications in various fields, including electronics, optics, and acoustics.
In electronics, BaTiO3 is commonly used as a dielectric material in capacitors. Its high dielectric constant enables capacitors to store a larger amount of electrical charge compared to other dielectric materials. This makes BaTiO3 a popular choice for energy storage applications.
In optics, BaTiO3 is used as a substrate material for optical waveguides and thin-film optical devices. Its high refractive index and low loss make it an ideal material for the manufacture of waveguides and optical resonators.
In acoustics, BaTiO3 is used as a piezoelectric material in transducers and sensors. Its high piezoelectric coefficient makes it ideal for applications such as ultrasound imaging and sound generation.
BaTiO3 substrates can be grown using various methods, including the solid-state reaction method, the solution method, and the floating zone method. The floating zone method is commonly used to grow high-quality single crystal substrates, which are required for certain applications, such as thin-film optical devices.