ScAlMgO4 (MgScAlO4 or SCAM) is a new substrate material for GaN and ZnO heteroepitaxy, it has the smallest lattice mismatch with GaN and ZnO. ScAlMgO4 crystal belongs to hexagonal system with lattice constant a=0.3246 nm, c=2.5195 nm, It has similar structure to wurtzite nitrite and zinc oxide.
OST Photonics offers high quality ScAlMgO4 substrates for researchers and industries. Crystal size and thickness can be customized according to your requirements.
Substrate material for GaN and ZnO heteroepitaxy
Best lattice match with GaN and ZnO
HIGH transmisson
High slope efficiency
Orientation:<0001>, etc.
Dimension: 5x5mm, 10x10mm, 15x15mm, 20x20mm, etc.
Thickness: 0.5mm, 1.0mm, etc.
Available items: substrates, blanks and customized optics
Crystal Structure | Hexagonal |
Lattice Constant | a=0.3246 nm, c=2.5195 nm |
Density | 3.64 g/cm3 |
Hardness | 4-5 Mohs |
Thermal Expansion Coefficient | 7.45x10^-6 /℃ |
Orientation | <0001>, etc. |
Orientation Tolerance | ±0.5° or better |
Dimension | 5x5mm, 10x10mm, 15x15mm, 20x20mm, etc. |
Dimension Tolerance | ±0.1 mm or better |
Thickness | 0.5mm, 1.0mm, etc. |
Thickness Tolerance | ±0.05 mm or better |
Surface Finish | Single side polished (SSP)/Double sides polished (DSP) |
Surface Roughness | Ra≤5Å (5µmx5µm) |
Package | Class 100 clean bag, Class 1000 super clean room |
