Home
Class 12
PHYSICS
Energy gap between valence band and cond...

Energy gap between valence band and conduction band is called as the ……….

A

forbidden energy gap

B

conduction band gap

C

valence band gap

D

filled band gap

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Define conduction band.

Let (Delta)E denote the energy gap between the valence band and the conduction band.The population of conduction electrons (and of the holes)is roughly proportional to e^(-Delta E//2kT). Find the ratio of the concentration of conduction electrons in diamond to that in silicon at room tempareture 300K. (Delta E) for silicon is 1.1 ev and for diamond is 6.0eV.How many conduction electrons are likely to be in one cubic meter of diamond ?

The band gap between the valence and the conduction bands in zinc oxide (ZnO) is 3.0eV.Suppose an electron in the conduction band combines with a hole in the valence band and the excess energy is released in the form of electromagnetic radiation .Find the maximum wavelength that can be emitted in this process.

In an insulator the energy gap between the conduction band and valence band is of the order of

In an good conductor the forbidden energy gap between the between the conduction band and valence band is of the order of

Indium antimonide has a band gap of 0.23eV between the valence and the conduction band.Find the temperature at which kT equal the band gap.

Small gap between pre and post synaptic membranes is called

Carbon, silicon and germanium have four valence electrons each . These are characterised by valence and conduction bands separated by energy band gap respectively equal to (E_(g))_(C) , (E_(g))_(Si) and (E_(g))_(Ge) . Which of the following statements is true ?