Single crystals of ZnO are grown by hydrothermal method in hemihedral direction (0001) . The obtained crystals are measuring up to 50 mm. They are featured by good optical homogeneity, law impurity content and steady technical parameters. ZnO belongs to “strong” piezo-electrics having semiconductor properties. Unit cell parameters of ZnO are near to them of GaN.
ZnO is used in: acoustoelectronics (dirigible SAW filters), piezo-engineering (chemical and medical sensors) and optics (substrates for semiconductor lasers).
| Specification |
Symmetry class: |
P63mc |
Cell parameters, Е: |
a=b=3.2495, c=5.2069 |
Melt point, °C: |
1975 |
Density, g/cm3: |
5.66 |
Communication range: |
0.4 - 0.6 µ > 50% for 2 mm |
Hardness (Mohs'): |
4 |
Dielectric constants: |
ε11T/ε0 |
8,3 |
ε33T/ε0 |
8.8 |
Piezoelectric constants, (x10-12 q/N): |
|
d15 = -13.9 k33=0.408 |
|
d31 = -5.2 k31=0.189 |
|
d33 = 10.6 k15=0.282 |
|
