The SrTiO3 (STO) substrates from Shinko Electric Industries are a long-selling product that is beloved by thin film researchers around the world.
The SrTiO3 (STO) substrates from Shinko Electric Industries have been a long-selling product favored by thin film researchers worldwide since the 1980s. We also offer options such as Nb-doped products with conductivity, step and terrace treatment, and break groove (chocolate bar-shaped) processed items.
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basic information
*SrTiO3 substrate Growth method: Bernoulli method Purity: ≧99.98% Surface orientation: (100), (110), (111) are handled as standard Crystal system: Cubic (Perovskite structure) Lattice constant: a=0.3905nm Melting point: 2080℃ Density: 5.122g/cm3 (20℃) Dielectric constant: 310 (27℃, 1MHz) Thermal expansion coefficient: 11.1×10^-6/℃ (room temperature to 1000℃) Phase transition: 110K (tetragonal ⇔ cubic) Refractive index: 2.407 (at 589nm) *When inquiring, please let us know your preferences for 1. Size (outer dimensions and thickness) 2. Surface orientation 3. Polished surface (single-sided or double-sided) 4. Required quantity 5. Other options, etc. *Standard products are also available (please refer to the catalog).
Price range
P1
Delivery Time
P4
※Delivery times may vary depending on stock status or new production, so please feel free to contact us.
Applications/Examples of results
* It has been used for a long time as a substrate for research on epitaxial thin films. * SrTiO3 (undoped) is transparent in the visible range, so it can also be used for optical property evaluation. * Surfaces treated with step & terrace processing enable layer-by-layer growth from the initial stages of film formation, which is said to be useful for improving reproducibility in film deposition. * Nb-doped products, which have conductivity, are believed to help solve issues related to electrical properties and charge-up. Crystals doped with Nb appear black. * By using samples with break grooves, it is possible to divide the substrate into smaller sizes in the laboratory for use, which is also useful for comparative tests using the same crystal substrate.
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Company information
Our company is a manufacturer of oxide single crystals. In particular, we specialize in the following products: 1. Sapphire (α-Al2O3) 2. SrTiO3 3. Rutile (single crystal of TiO2). Although we are a crystal manufacturer, we also perform a full range of processing, including cutting, grinding, and polishing. Having handled crystals for over 70 years since our founding, we possess extensive knowledge and experience, especially regarding sapphire. Recently, we have also been mass-producing sapphire crystals larger than 300mm, allowing us to accommodate large-shaped products and mass production. We are a small company with about 170 employees, but please feel free to contact us if there is anything we can assist you with.