3.5 Pa
RF Power (W) 25 50 75 100 150 200
Band Gap Eg (eV)
Direct (αhν)2 2.16 2.12 2.04 2.08 2.04 2.04
Indirect (αhν)1/2 1.90 1.80 1.70 1.76 1.61 1.68