Question

Which of the following expressions represents the correct distribution of the electrons in the conduction band? (gc(E)=density of quantum states, fF(E)=Fermi dirac probability

(a) n(E)=gc(E)*fF(E)

(b) n(E)=gc(-E)*fF(E)

(c) n(E)=gc(E)*fF(-E)

(d) n(E)= gc(-E)*fF(-E)

This question was posed to me in final exam.

I need to ask this question from Electrons and Holes in Semiconductor topic in division Conduction in Semiconductors of Electronic Devices & Circuits

Answer 1

Right answer is (a) n(E)=gc(E)*fF(E)

To explain: The distribution of the electrons in the conduction band is given by the product of the density into Fermi-dirac distribution.