The holes associated with electrons in the conduction band are independent from the latter.
A smaller amount have energy levels above the forbidden gap, and this is the conduction band.
Under stimulation of light the electrons may free themselves from the trap and get into the conduction band.
Electrons in the conduction band are free to move in the material.
The conduction band, above the Fermi level, is normally nearly completely empty.
Additional kinetic energy is required to move an electron out of the conduction band and into the vacuum level.
As the name implies, electrons in the conduction band are free to move about the silicon.
As you might expect, the conduction band contains electrons that are able to move freely through the material.
However, some metals have a mostly filled conduction band.
Once in the conduction band, the electrons are free to move and diffuse throughout the crystal.