- sales@opticrystal.com
- +86 199 5654 5175
Nb:SrTiO3 Niobium-doped strontium titanate has similar structures with strontium titanate single crystals. At present, a single crystal substrate with niobium-doped concentration: 0.05wt%,0.1wt%,0.5wt%, 0.7 wt% Nb: SrTiO3 can be provided.
Product Description
Nb:SrTiO3 Niobium-doped strontium titanate has similar structures with strontium titanate single crystals. At present, a single crystal substrate with niobium-doped concentration: 0.05wt%,0.1wt%,0.5wt%, 0.7 wt% Nb: SrTiO3 can be provided.
Material Properties
| Syngony | cubic system |
| Growing directions | Flame method |
| Lattice constant | a=3.905Å |
| Nb-doped concentration (Fe%) | 0.05wt％，0.1wt％，0.5wt% ，0.7wt% |
| Melting point (℃) | 2080 |
| Density | 5.122（g/cm3） |
| Hardness | 6-6.5（mohs） |
| Thermal expansion coefficient/℃ | 9.4×10-6 |
| Dielectric constant | ε=5.20 |
| Chemical stability | Do not dissolve in water |
| Thermal expansion coefficient | 10.4×10-6/k |
| Positive cut loss | ~5×10^-4（300k） ~3×10^-4（77k） |
| Size | 5×5m、10×5m、10×10mm、15×15mm、20×20mm |
| Thickness | 0.5mm、1.0mm |
| Dimensional tolerance | <±0.1mm |
| Thickness deviation | Special requirements of <± 0.05mm up to <± 0.005mm) |
| Polishing | Single or double-sided |
| Conventional crystal orientation | <100>;<110> ;<111> |
| Crystal orientation error | +/-0.5 degrees, + / -0.3 degrees |
| Edge orientation accuracy | 2° (Special requirements are within 1°) |
