posted by Ankur .
Silicon (50 g) has been doped with 27 mg of antimony (Sb). Determine the concentration of free charge carriers (carriers/cm3) at room temperature in this material.
Calculate the absorption edge of this material. Express your answer as a wavenumber in units of inverse meters.
b)wavenumber= Eg / hc
Eg(Silicon band energy)= 1.11 eV (to joules)
wavenumber= Eg*1.6*10^-19 / hc = 896969.69