Strontium Titanate (Strontium Titanium Oxide)

Strontium Titanium Oxide sputtering target is a high-purity, high-density target with good crystallinity and good bonding to the substrate, which has important applications in electronics, optoelectronics, sensors, superconductivity and other fields.

Characteristics

Chemical formula: SrTiO3

Dielectric constant: strontium titanate has a high dielectric constant, at room temperature its dielectric constant is usually between 200-300, this characteristic makes it in the electronic device as an insulating medium layer, can effectively increase the storage capacitance, improve the performance of the electronic device and integration.

Bandwidth: Its bandwidth is about 3.2 eV, the wider bandwidth makes it have good optical transparency and optoelectronic performance in optoelectronic devices, and it can be used to prepare optical films, such as anti-reflective coatings, optical waveguides, etc., to improve the optical performance of optoelectronic devices.

Lattice Constant: The lattice constant of Strontium Titanium Oxide is about 0.3905 nm, which has a good lattice match with a variety of substrate materials, such as silicon, sapphire, etc. It is conducive to the sputtering of thin films firmly attached to the substrate surface to reduce the stress between the film and the substrate, and to improve the adhesion and stability of the film.

Applications

Electronic devices: used in the preparation of capacitors, resistors, transistors and other electronic components in the insulating medium layer, electrode materials, etc., to improve the performance and integration of electronic devices. For example, in Dynamic Random Access Memory (DRAM), Strontium Titanium Oxide film can be used as a high dielectric constant insulating layer to increase the storage capacitance and improve the storage density.

Optoelectronic devices: It can be used to prepare optical films, such as anti-reflective coatings and optical waveguides. Its high refractive index and low absorption coefficient make it able to effectively reduce the reflection and scattering of light, improve the optical performance of photoelectric devices, such as in solar cells, can be used as a reflection-reducing coating to improve the absorption efficiency of light, thus improving the photoelectric conversion efficiency of solar cells.

Sensor field: Based on the piezoelectric and ferroelectric properties of Strontium Titanium Oxide, its sputtered thin film can be used to prepare pressure sensors, gas sensors, temperature sensors and other sensor devices. For example, using the piezoelectric effect of strontium titanate, pressure changes can be converted into electrical signals to achieve accurate measurement of pressure.

Superconductivity field: Strontium Titanium Oxide has superconducting properties under certain conditions, so its sputtered films can be used for research and development of superconducting devices, such as superconducting quantum interference devices (SQUID), etc., which provide potential applications in quantum computing, high-precision measurements and other fields .