Chemical analysis of a silicon crystal reveals gallium at a level of 3.091×10−6 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Si matrix is negligible, what is the density of free charge carriers (free carriers/cm3) in this Si crystal?

Question

Chemical analysis of a silicon crystal reveals gallium at a level of 3.091×10−6 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Si matrix is negligible, what is the density of free charge carriers (free carriers/cm3) in this Si crystal?
unanswered

Anonima · Answer

wrong answer...

School girl · Answer

Any hint how to do it?

MIT2 · Answer

CHEAT! Do NOT help this person. They are trying to cheat in a midterm exam.

Odesa · Answer

As its Si: 5.00*10^22 / (gallium level*10^-2) by someguy