Crystals Land

   ZnO

Main properties:
 

Chemical formula	ZnO
Symmetry class	P63mc
Cell parameter, Å	a=b=3,2495  c=5,2069
Melting point, º C	1975
Density, g/cm3	5,66
Mohs’  hardness	4
Direction of growth	(0001)
Piezomodule, mV-1	d33 =  10,6
Dielectric constant,  e11 / e0 e33 / e0	8,3 8,8
Piezoelectric constants (x1012 q/N)	d = - 13,9 k33 = 0,408 d = - 5,2   k31 = 0,189 d = 10,6    k15 = 0,282
Transmission range	0,4-0,6 m > 50% at 2 mm
Electromechanical constant	k33= 0,408
Band gap, eV	3,436
Thermal expansion, K-1	2,9 x 10 -6
Refractive index	n0=2,0681 ne= 2,0510
Element’s dimensions, mm	10 x 10 x 5,5...10* 15 x 15 x 5,5...10