Strontium titanate (SrTiO₃) is an important ceramic material with a variety of unique physical properties, so it has a wide range of applications in the fields of electronics, optics and materials science.

1. Electronic ceramics: Due to its high dielectric constant and low losses, strontium titanate is used as an insulator in high-frequency capacitors and microwave devices.

2. Optical coating: Strontium titanate has a high refractive index and transparency, so it is used as an optical coating to improve the performance of optical components such as camera lenses, telescopes, and optical fibers.

3. Catalysts and catalyst carriers: Strontium titanate can be used as catalysts or catalyst carriers, especially in automotive exhaust treatment and the chemical industry.

4. Sensors: The piezoelectric nature of strontium titanate makes it suitable for pressure and temperature sensors.

5. High-temperature superconducting materials: Strontium titanate is used as one of the basic materials for high-temperature superconductors.

6. Photocatalyst: In environmental purification and water splitting reactions, strontium titanate can be used as a photocatalyst.

7. Biomedical applications: The biocompatibility of strontium titanate makes it a potential application in the biomedical field, such as bone repair materials.

8. Nonlinear Optics: The nonlinear optical properties of strontium titanate make it have potential applications in the field of laser technology and optical communication.

9. Ferroelectric materials: Strontium titanate has ferroelectric properties and can be used in memory and non-volatile storage devices.

10. Solar cells: Strontium titanate has also been studied to improve the efficiency and stability of solar cells.