What is the carrier density of germanium?

I believe that the carrier density is somewhere in the 10^20 region, but I also think it depends on the sample used. So if the value does vary, what factors affect it?|||depends on temperature and also doping type and concentration





the intrinsic carrier concentration of Ge is 2.4x10^13 cm^-3 at 300K





a quick google search finds a plot:


http://physics.ship.edu/~mrc/pfs/308/sem鈥?/a>


which is linked on:


http://physics.ship.edu/~mrc/pfs/308/sem鈥?/a>