Using a = 1.0117 nm for cubic In2O3 and 16 atoms per unit cell, I calculate
16 x (1,0117E-7 cm)-3 = 1.55E+22 atoms/cm3.
If I am doping In2O3 at 2%, the concentration would be 0.02 x 1.55E+22 = 3.1E+20 atoms/cm3. Is this correct?
Any references would be helpful.