In semiconductors at room temperature,

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) In semiconductors,the energy gap between the valence band and the conduction band is small. At room temperature,thermal energy is sufficient for s

Vedclass · Accepted Answer

the conduction band is partially filled and the valence band is partially empty.

Vedclass · Answer

(C) In semiconductors,the energy gap between the valence band and the conduction band is small. At room temperature,thermal energy is sufficient for some electrons to jump from the valence band to the conduction band by overcoming the forbidden energy gap. As a result,some electrons move to the conduction band,making it partially filled. Simultaneously,this leaves behind vacancies (holes) in the valence band,making it partially empty. Therefore,at room temperature,both the conduction band and the valence band are partially filled/empty.

Similar Questions

The manifestation of band structure in solids is due to

At absolute zero temperature,an intrinsic semiconductor behaves as

Carbon,Silicon,and Germanium atoms each have four valence electrons. If their bandgaps are represented by $(E_g)_C$,$(E_g)_{Si}$,and $(E_g)_{Ge}$ respectively,which of the following relations is correct?

In good conductors of electricity,the type of bonding that exists is

In the case of insulators,the band gap and the conduction band are respectively:

Vedclass Test Series

Exam Paper Generator

Online Exam Module