SrTiO₃ Wafer (Strontium Titanate Wafer)
High-quality insulating perovskite oxide substrate for epitaxial growth and advanced oxide thin film applications
Description
🔷 Overview
SrTiO₃ (STO) wafer is a high-quality single crystal perovskite oxide substrate widely used for epitaxial growth of complex oxide thin films and functional materials.
As an intrinsic (undoped) material, STO exhibits excellent insulating properties, making it an ideal substrate for applications requiring electrical isolation. With its well-matched lattice structure and high crystalline quality, SrTiO₃ is commonly used in PLD, MBE, and sputtering processes.
It is one of the most widely used substrates in oxide electronics, superconducting materials, and ferroelectric research.
🔷 Key Features
- Intrinsic insulating substrate (no doping)
- Excellent lattice matching with perovskite oxides
- High crystal quality for epitaxial growth
- Suitable for PLD, MBE, and sputtering deposition
- Stable cubic structure
- Smooth surface with epi-ready finish
🔷 Specifications
| Product: | SrTiO₃ Wafer |
| Material property: | Crystal structure: Cubic (Perovskite) |
| Lattice constant: a = 3.905 Å | |
| Density: 5.12 g/cm3 | |
| Melting point: 2080 °C | |
| Growth Method: | CZ |
| Dimension: |
• 5 × 5 × 0.5 mm • 10 × 10 × 0.5 mm • Other sizes customizable |
| Orientation: | <100> / <110> /<111> |
| Polishing: | As-cut / Single side / double side epi-polished |
| Surface roughness: | < 0.5 nm |
🔷 Applications
- Oxide thin film epitaxy (PLD / MBE / sputtering)
- High-temperature superconductors (HTS)
- Ferroelectric and dielectric materials
- Thin film research and device fabrication
- Interface physics and 2DEG studies
- Buffer layer substrate for complex oxides
🔷 Why Choose STO Wafer
- Industry-standard substrate for perovskite oxides
- Excellent lattice compatibility
- High surface quality for epitaxial growth
- Reliable and widely validated in research
🔷 Customization Options
- Orientation & off-cut
- Thickness & size
- Surface finish (SSP / DSP / Epi-ready)
- Research-grade / device-grade
Related Products
TiO₂ Wafer (Titanium Dioxide Substrate)
Binary Wafer
Wafer
High-quality TiO₂ substrates for optical, photonic, and thin-film applications.
Prime Grade Silicon Wafer
Elemental Wafer
Wafer
High purity monocrystalline silicon substrate for semiconductor and research applications
CaCO₃ Wafer (Calcium Carbonate Wafer)
Wafer
Ternary Wafer
High birefringence optical crystal substrate for polarization and photonic applications
SiC Wafer (Silicon Carbide Wafer)
Binary Wafer
Wafer
High-performance SiC wafers for power electronics, high-temperature, and high-frequency applications.
GGG Wafer (Gadolinium Gallium Garnet, Gd₃Ga₅O₁₂ Wafer)
Wafer
Ternary Wafer
High-quality garnet substrate for magnetic thin films and oxide epitaxy