Single Crystal Substrate STO (Purity: >99.9%, Size:10*5*0.5mm)

Single Crystal Substrate STO

Introduction:

Single crystal substrates STO are essential in various fields of materials science, particularly in the fabrication of thin films and heterostructures. These substrates provide a uniform crystalline structure, which is crucial for achieving high-quality epitaxial growth of films. Strontium titanate  is one of the most widely used single crystal substrates due to its excellent properties.

Properties of Strontium Titanate (STO)

Perovskite Structure: STO has a cubic perovskite structure, which allows for good lattice matching with many oxide materials, facilitating the growth of high-quality films.

Dielectric Properties: STO has a high dielectric constant and low loss, making it ideal for applications in electronics and photonics.

Ferroelectricity: It exhibits ferroelectric properties below a certain temperature, which is beneficial for memory devices and sensors.

Band Gap: STO has a band gap of about 3.2 eV, making it suitable for optoelectronic applications.

Thermal Stability: It is thermally stable, which is critical during high-temperature processing of thin films.

Applications of STO as a Substrate

Thin Film Growth: STO is often used as a substrate for the growth of various thin films, including high-temperature superconductors, magnetic materials, and oxide semiconductors.

Heterostructures: It serves as a base for complex heterostructures, such as those used in topological insulators and two-dimensional materials.

Electronics: STO substrates are critical in developing advanced electronic devices, including capacitors and transistors, due to their excellent electrical properties.

Photonics: The optical transparency of STO in the visible and near-infrared regions makes it suitable for photonic applications, including waveguides and lasers.

Research: STO is a popular substrate in research settings, especially in studies involving ferroelectric and ferromagnetic materials.