Table 3. Semiconductors with the sphalerite (S) or wurtzite (W) structure.

	GaN	GaP	GaAs	AlN	ZnO	ZnSe	β-AgI
Type	W	S	S	W	W	S	W
a 0 (nm)	0.319	0.5451	0.5653	0.311	0.3253	0.5668	0.458
c 0 (nm)	0.519	–	–	0.498	0.5213	–	0.7494
E g (eV)	3.44	2.26	1.42	6.2	3.3	2.7	2.63
λg (µm)	0.36	0.59	0.87	0.20	0.38	0.46	0.47