513.001 Molecular and Solid State Physics

Hole concentration in intrinsic silicon

What is the concentration of holes in the valence band of intrinsic silicon at 203 K?

N_c = 2.78 × 10²⁵ m^-3
N_v = 9.84 × 10²⁴ m^-3
E_g = 1.12 eV